./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a 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_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc --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 7e4d89645739beae47f9c52ff5003bd634bd856a7fdd28a03c9ca1afb29cead1 --- 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-5e519f3 [2022-11-02 21:08:06,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:08:06,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:08:06,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:08:06,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:08:06,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:08:06,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:08:06,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:08:06,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:08:06,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:08:06,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:08:06,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:08:06,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:08:07,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:08:07,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:08:07,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:08:07,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:08:07,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:08:07,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:08:07,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:08:07,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:08:07,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:08:07,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:08:07,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:08:07,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:08:07,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:08:07,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:08:07,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:08:07,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:08:07,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:08:07,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:08:07,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:08:07,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:08:07,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:08:07,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:08:07,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:08:07,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:08:07,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:08:07,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:08:07,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:08:07,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:08:07,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 21:08:07,107 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:08:07,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:08:07,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:08:07,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:08:07,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:08:07,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:08:07,111 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:08:07,111 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 21:08:07,111 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 21:08:07,111 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 21:08:07,113 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 21:08:07,113 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 21:08:07,113 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 21:08:07,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:08:07,114 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:08:07,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:08:07,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:08:07,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 21:08:07,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 21:08:07,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 21:08:07,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:08:07,116 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 21:08:07,116 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:08:07,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 21:08:07,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:08:07,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:08:07,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:08:07,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:08:07,119 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 21:08:07,120 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_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4d89645739beae47f9c52ff5003bd634bd856a7fdd28a03c9ca1afb29cead1 [2022-11-02 21:08:07,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:08:07,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:08:07,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:08:07,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:08:07,505 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:08:07,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i [2022-11-02 21:08:07,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/data/fe1eccd69/917bf71ad65440e4be685163642d1c61/FLAG7399ef8a2 [2022-11-02 21:08:08,225 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:08:08,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca.i [2022-11-02 21:08:08,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/data/fe1eccd69/917bf71ad65440e4be685163642d1c61/FLAG7399ef8a2 [2022-11-02 21:08:08,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/data/fe1eccd69/917bf71ad65440e4be685163642d1c61 [2022-11-02 21:08:08,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:08:08,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:08:08,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:08:08,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:08:08,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:08:08,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:08:08" (1/1) ... [2022-11-02 21:08:08,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df465d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:08, skipping insertion in model container [2022-11-02 21:08:08,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:08:08" (1/1) ... [2022-11-02 21:08:08,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:08:08,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:08:09,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:08:09,057 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:08:09,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:08:09,144 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:08:09,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09 WrapperNode [2022-11-02 21:08:09,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:08:09,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:08:09,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:08:09,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:08:09,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,211 INFO L138 Inliner]: procedures = 109, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2022-11-02 21:08:09,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:08:09,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:08:09,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:08:09,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:08:09,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:08:09,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:08:09,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:08:09,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:08:09,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (1/1) ... [2022-11-02 21:08:09,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:09,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:09,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:09,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 21:08:09,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:08:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:08:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:08:09,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:08:09,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:08:09,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:08:09,505 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:08:09,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:08:09,686 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:08:09,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:08:09,693 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 21:08:09,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:08:09 BoogieIcfgContainer [2022-11-02 21:08:09,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:08:09,697 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 21:08:09,697 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 21:08:09,702 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 21:08:09,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:08:09,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 09:08:08" (1/3) ... [2022-11-02 21:08:09,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29feeacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:08:09, skipping insertion in model container [2022-11-02 21:08:09,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:08:09,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:08:09" (2/3) ... [2022-11-02 21:08:09,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29feeacc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 09:08:09, skipping insertion in model container [2022-11-02 21:08:09,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 21:08:09,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:08:09" (3/3) ... [2022-11-02 21:08:09,708 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig2-alloca.i [2022-11-02 21:08:09,804 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 21:08:09,804 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 21:08:09,804 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 21:08:09,805 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 21:08:09,805 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 21:08:09,805 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 21:08:09,805 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 21:08:09,806 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 21:08:09,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:09,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 21:08:09,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:09,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:09,883 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:08:09,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 21:08:09,889 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 21:08:09,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:09,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 21:08:09,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:09,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:09,891 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:08:09,892 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 21:08:09,910 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#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~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 6#L549-3true [2022-11-02 21:08:09,910 INFO L750 eck$LassoCheckResult]: Loop: 6#L549-3true call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 2#L549-1true assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 7#L551-3true assume !true; 11#L551-4true call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 6#L549-3true [2022-11-02 21:08:09,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:09,927 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 21:08:09,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:09,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783313751] [2022-11-02 21:08:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:09,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:10,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:10,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:10,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:10,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1144360, now seen corresponding path program 1 times [2022-11-02 21:08:10,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:10,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187431797] [2022-11-02 21:08:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:10,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:10,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:10,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187431797] [2022-11-02 21:08:10,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187431797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:10,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:10,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:08:10,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469562668] [2022-11-02 21:08:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:10,322 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 21:08:10,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:10,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:08:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:08:10,381 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:10,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:08:10,390 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-11-02 21:08:10,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2022-11-02 21:08:10,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 21:08:10,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2022-11-02 21:08:10,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-02 21:08:10,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 21:08:10,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-11-02 21:08:10,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:10,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-02 21:08:10,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-11-02 21:08:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-02 21:08:10,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:10,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-11-02 21:08:10,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-02 21:08:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:08:10,448 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-02 21:08:10,448 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 21:08:10,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-11-02 21:08:10,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-02 21:08:10,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:10,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:10,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:08:10,452 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-02 21:08:10,452 INFO L748 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 33#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 34#L549-3 [2022-11-02 21:08:10,453 INFO L750 eck$LassoCheckResult]: Loop: 34#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 30#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 31#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 35#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 36#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 34#L549-3 [2022-11-02 21:08:10,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:10,456 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-02 21:08:10,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:10,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416126984] [2022-11-02 21:08:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:10,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:10,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:10,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:10,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:10,517 INFO L85 PathProgramCache]: Analyzing trace with hash 35468273, now seen corresponding path program 1 times [2022-11-02 21:08:10,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:10,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908901399] [2022-11-02 21:08:10,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:10,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:10,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:10,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908901399] [2022-11-02 21:08:10,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908901399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:08:10,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:08:10,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:08:10,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156614088] [2022-11-02 21:08:10,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:08:10,782 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 21:08:10,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:10,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:08:10,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:08:10,783 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:08:10,840 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2022-11-02 21:08:10,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2022-11-02 21:08:10,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-02 21:08:10,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2022-11-02 21:08:10,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-02 21:08:10,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-02 21:08:10,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2022-11-02 21:08:10,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:10,844 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-02 21:08:10,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2022-11-02 21:08:10,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-02 21:08:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-11-02 21:08:10,848 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-02 21:08:10,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:08:10,855 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-02 21:08:10,856 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 21:08:10,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2022-11-02 21:08:10,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-02 21:08:10,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:10,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:10,859 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:08:10,860 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-11-02 21:08:10,861 INFO L748 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 58#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~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 59#L549-3 [2022-11-02 21:08:10,861 INFO L750 eck$LassoCheckResult]: Loop: 59#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 55#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 56#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 60#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 61#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 63#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 62#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 59#L549-3 [2022-11-02 21:08:10,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-02 21:08:10,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:10,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637361043] [2022-11-02 21:08:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:10,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:10,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:10,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:10,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:10,905 INFO L85 PathProgramCache]: Analyzing trace with hash -274676436, now seen corresponding path program 1 times [2022-11-02 21:08:10,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:10,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345391395] [2022-11-02 21:08:10,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:11,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:11,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345391395] [2022-11-02 21:08:11,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345391395] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:08:11,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124900515] [2022-11-02 21:08:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:11,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:08:11,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:11,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:08:11,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:08:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:11,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:08:11,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:11,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 21:08:11,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-02 21:08:11,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-02 21:08:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:11,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:08:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:11,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124900515] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:08:11,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:08:11,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2022-11-02 21:08:11,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899056346] [2022-11-02 21:08:11,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:08:11,604 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 21:08:11,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:11,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:08:11,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:08:11,606 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:08:11,693 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-02 21:08:11,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2022-11-02 21:08:11,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-02 21:08:11,695 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2022-11-02 21:08:11,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-02 21:08:11,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-02 21:08:11,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2022-11-02 21:08:11,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:11,696 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-02 21:08:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2022-11-02 21:08:11,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-02 21:08:11,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-02 21:08:11,698 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-02 21:08:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:08:11,699 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-02 21:08:11,700 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 21:08:11,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2022-11-02 21:08:11,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-02 21:08:11,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:11,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:11,701 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:08:11,701 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 4, 1, 1, 1, 1] [2022-11-02 21:08:11,702 INFO L748 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 138#L549-3 [2022-11-02 21:08:11,702 INFO L750 eck$LassoCheckResult]: Loop: 138#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 134#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 135#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 139#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 140#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 141#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 148#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 147#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 146#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 145#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 144#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 143#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 142#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 138#L549-3 [2022-11-02 21:08:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:11,702 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-11-02 21:08:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:11,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862546366] [2022-11-02 21:08:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:11,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:11,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:11,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash 351922269, now seen corresponding path program 2 times [2022-11-02 21:08:11,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:11,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222505226] [2022-11-02 21:08:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:12,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:08:12,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222505226] [2022-11-02 21:08:12,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222505226] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:08:12,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597514858] [2022-11-02 21:08:12,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:08:12,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:08:12,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:12,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:08:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:08:12,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:08:12,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:08:12,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 21:08:12,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:12,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 21:08:12,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-02 21:08:12,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-02 21:08:12,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-02 21:08:12,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-02 21:08:12,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7 [2022-11-02 21:08:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:12,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:08:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:12,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597514858] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:08:12,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:08:12,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 17 [2022-11-02 21:08:12,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890524844] [2022-11-02 21:08:12,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:08:12,774 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 21:08:12,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:08:12,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-02 21:08:12,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=160, Unknown=0, NotChecked=0, Total=272 [2022-11-02 21:08:12,781 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 2 Second operand has 17 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 17 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:12,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:08:12,993 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-02 21:08:12,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2022-11-02 21:08:12,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2022-11-02 21:08:13,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2022-11-02 21:08:13,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-11-02 21:08:13,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-11-02 21:08:13,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2022-11-02 21:08:13,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:13,003 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-02 21:08:13,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2022-11-02 21:08:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-02 21:08:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:13,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-02 21:08:13,009 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-02 21:08:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 21:08:13,010 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-02 21:08:13,012 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 21:08:13,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2022-11-02 21:08:13,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2022-11-02 21:08:13,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:13,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:13,015 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 21:08:13,016 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 9, 1, 1, 1, 1] [2022-11-02 21:08:13,016 INFO L748 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 279#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~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 280#L549-3 [2022-11-02 21:08:13,016 INFO L750 eck$LassoCheckResult]: Loop: 280#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 276#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 277#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 281#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 282#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 283#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 300#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 299#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 298#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 297#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 296#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 295#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 294#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 293#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 292#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 291#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 290#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 289#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 288#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 287#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 286#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 285#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 284#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 280#L549-3 [2022-11-02 21:08:13,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:13,017 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2022-11-02 21:08:13,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:13,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900156938] [2022-11-02 21:08:13,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:13,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:13,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:13,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:13,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:13,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1943458812, now seen corresponding path program 3 times [2022-11-02 21:08:13,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:13,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767110465] [2022-11-02 21:08:13,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:13,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:13,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:13,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:13,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:13,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1979445758, now seen corresponding path program 1 times [2022-11-02 21:08:13,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:13,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431214411] [2022-11-02 21:08:13,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:13,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:13,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:13,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:19,215 WARN L234 SmtUtils]: Spent 5.99s on a formula simplification. DAG size of input: 138 DAG size of output: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 21:08:19,571 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:08:19,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:08:19,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:08:19,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:08:19,573 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:08:19,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:19,573 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:08:19,573 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:08:19,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca.i_Iteration5_Lasso [2022-11-02 21:08:19,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:08:19,574 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:08:19,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,952 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,963 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,967 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,971 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,975 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,979 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:19,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:20,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:08:20,362 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:08:20,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:20,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:20,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:20,371 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 [2022-11-02 21:08:20,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 21:08:20,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:20,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:08:20,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:20,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:20,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:20,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:08:20,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:08:20,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:08:20,407 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 21:08:20,407 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 21:08:20,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:20,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:20,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:20,453 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:08:20,453 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 21:08:20,454 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:08:20,455 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1 + 21 Supporting invariants [] [2022-11-02 21:08:20,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 21:08:20,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:20,555 INFO L156 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2022-11-02 21:08:20,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:20,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:08:20,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:20,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 21:08:20,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:20,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:20,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:20,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:20,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:20,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:20,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:20,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:21,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:21,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:21,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:21,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 21:08:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-02 21:08:21,146 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 21:08:21,148 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:21,244 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 51 transitions. Complement of second has 6 states. [2022-11-02 21:08:21,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 21:08:21,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:21,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-11-02 21:08:21,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 23 letters. [2022-11-02 21:08:21,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:21,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 25 letters. Loop has 23 letters. [2022-11-02 21:08:21,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:21,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 46 letters. [2022-11-02 21:08:21,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:21,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2022-11-02 21:08:21,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 21:08:21,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 47 states and 50 transitions. [2022-11-02 21:08:21,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-02 21:08:21,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-11-02 21:08:21,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 50 transitions. [2022-11-02 21:08:21,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:08:21,272 INFO L218 hiAutomatonCegarLoop]: Abstraction has 47 states and 50 transitions. [2022-11-02 21:08:21,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 50 transitions. [2022-11-02 21:08:21,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 29. [2022-11-02 21:08:21,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-02 21:08:21,281 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-02 21:08:21,282 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-02 21:08:21,283 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-02 21:08:21,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 32 transitions. [2022-11-02 21:08:21,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 21:08:21,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:21,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:21,289 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 21:08:21,289 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 21:08:21,289 INFO L748 eck$LassoCheckResult]: Stem: 500#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 501#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~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 502#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 496#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 497#L551-3 [2022-11-02 21:08:21,289 INFO L750 eck$LassoCheckResult]: Loop: 497#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 504#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 497#L551-3 [2022-11-02 21:08:21,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:21,290 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-02 21:08:21,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:21,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731423312] [2022-11-02 21:08:21,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:21,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:21,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:21,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:21,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2022-11-02 21:08:21,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:21,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659392246] [2022-11-02 21:08:21,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:21,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:21,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:21,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:21,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:21,350 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2022-11-02 21:08:21,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:21,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397285226] [2022-11-02 21:08:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:21,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:21,380 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:21,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:21,832 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:08:21,832 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:08:21,832 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:08:21,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:08:21,833 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:08:21,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:21,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:08:21,833 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:08:21,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca.i_Iteration6_Lasso [2022-11-02 21:08:21,833 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:08:21,833 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:08:21,836 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:21,840 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:21,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:21,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:21,851 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:21,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:21,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:22,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:22,066 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:22,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:22,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:22,330 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:08:22,330 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:08:22,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 21:08:22,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 21:08:22,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:08:22,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:08:22,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:08:22,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:22,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:22,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,403 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 21:08:22,405 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 [2022-11-02 21:08:22,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:22,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:22,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:22,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:22,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,502 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 21:08:22,512 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 [2022-11-02 21:08:22,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:22,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:22,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:22,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:22,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,588 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,595 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 [2022-11-02 21:08:22,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 21:08:22,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:08:22,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:08:22,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:08:22,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:22,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:22,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,686 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 [2022-11-02 21:08:22,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 21:08:22,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:22,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:22,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:22,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:22,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,752 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 21:08:22,755 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 [2022-11-02 21:08:22,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:08:22,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:08:22,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:08:22,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:22,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:22,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,797 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 21:08:22,813 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 [2022-11-02 21:08:22,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:22,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:22,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:22,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:22,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:22,889 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:22,898 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 [2022-11-02 21:08:22,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 21:08:22,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:22,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:22,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:22,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:22,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:22,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:22,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:23,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:23,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:23,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:23,032 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:23,040 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 [2022-11-02 21:08:23,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 21:08:23,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:23,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:23,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:23,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:23,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:23,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:23,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:23,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:23,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:23,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:23,126 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:23,134 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 [2022-11-02 21:08:23,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 21:08:23,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:23,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:08:23,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:23,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:23,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:23,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:08:23,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:08:23,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:23,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-11-02 21:08:23,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:23,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:23,219 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:23,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 21:08:23,225 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 [2022-11-02 21:08:23,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:23,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:23,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:23,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:23,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:23,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:23,270 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:08:23,290 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-11-02 21:08:23,290 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-11-02 21:08:23,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:23,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:23,295 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:23,299 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:08:23,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 21:08:23,318 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-02 21:08:23,318 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:08:23,318 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2 Supporting invariants [] [2022-11-02 21:08:23,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:23,377 INFO L156 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2022-11-02 21:08:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:23,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:08:23,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:23,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:08:23,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:23,456 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 21:08:23,456 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:23,483 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 72 transitions. Complement of second has 7 states. [2022-11-02 21:08:23,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 21:08:23,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-11-02 21:08:23,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-02 21:08:23,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:23,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-02 21:08:23,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:23,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-02 21:08:23,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:23,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 72 transitions. [2022-11-02 21:08:23,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 21:08:23,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 52 states and 55 transitions. [2022-11-02 21:08:23,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-02 21:08:23,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-02 21:08:23,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 55 transitions. [2022-11-02 21:08:23,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 21:08:23,499 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-02 21:08:23,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 55 transitions. [2022-11-02 21:08:23,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2022-11-02 21:08:23,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.06) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-02 21:08:23,508 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-02 21:08:23,508 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-02 21:08:23,508 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-02 21:08:23,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 53 transitions. [2022-11-02 21:08:23,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 21:08:23,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 21:08:23,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 21:08:23,512 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 2, 2, 1, 1, 1, 1] [2022-11-02 21:08:23,513 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 21:08:23,513 INFO L748 eck$LassoCheckResult]: Stem: 669#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 670#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~mem6#1, main_#t~mem5#1, main_#t~mem7#1, main_#t~mem4#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 671#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 667#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 668#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 677#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 675#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 676#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 714#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 713#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 712#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 711#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 710#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 709#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 708#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 707#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 706#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 705#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 704#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 703#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 702#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 682#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 683#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 679#L551-1 assume !(main_#t~mem5#1 > 1);havoc main_#t~mem5#1; 678#L551-4 call main_#t~mem7#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem7#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem7#1; 672#L549-3 call main_#t~mem4#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 665#L549-1 assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 666#L551-3 [2022-11-02 21:08:23,513 INFO L750 eck$LassoCheckResult]: Loop: 666#L551-3 call main_#t~mem5#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 674#L551-1 assume !!(main_#t~mem5#1 > 1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem6#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem6#1; 666#L551-3 [2022-11-02 21:08:23,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:23,514 INFO L85 PathProgramCache]: Analyzing trace with hash 423138919, now seen corresponding path program 2 times [2022-11-02 21:08:23,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:23,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845088763] [2022-11-02 21:08:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:23,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:23,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:23,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:23,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:23,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 2 times [2022-11-02 21:08:23,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:23,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378052030] [2022-11-02 21:08:23,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:23,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:23,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:23,622 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:23,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1385391412, now seen corresponding path program 3 times [2022-11-02 21:08:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:08:23,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809505949] [2022-11-02 21:08:23,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:08:23,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:08:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:23,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:08:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:08:23,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:08:32,404 WARN L234 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 184 DAG size of output: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-02 21:08:32,696 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 21:08:32,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 21:08:32,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 21:08:32,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 21:08:32,696 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 21:08:32,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:32,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 21:08:32,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 21:08:32,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca.i_Iteration7_Lasso [2022-11-02 21:08:32,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 21:08:32,697 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 21:08:32,700 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,707 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:32,932 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,940 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,944 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,947 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:32,954 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 21:08:33,223 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 21:08:33,223 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 21:08:33,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,228 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,240 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 [2022-11-02 21:08:33,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 21:08:33,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 21:08:33,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 21:08:33,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 21:08:33,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,317 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 21:08:33,323 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 [2022-11-02 21:08:33,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,390 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,393 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 [2022-11-02 21:08:33,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 21:08:33,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,411 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,461 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,472 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 [2022-11-02 21:08:33,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 21:08:33,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,552 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 21:08:33,554 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 [2022-11-02 21:08:33,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,593 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-02 21:08:33,596 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 [2022-11-02 21:08:33,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,626 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,652 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 21:08:33,653 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 [2022-11-02 21:08:33,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-02 21:08:33,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,695 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-02 21:08:33,696 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 [2022-11-02 21:08:33,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,774 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 21:08:33,776 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 [2022-11-02 21:08:33,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 21:08:33,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-11-02 21:08:33,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,813 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-02 21:08:33,816 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 [2022-11-02 21:08:33,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 21:08:33,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 21:08:33,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 21:08:33,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 21:08:33,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 21:08:33,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 21:08:33,842 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 21:08:33,853 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-02 21:08:33,853 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-11-02 21:08:33,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 21:08:33,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:08:33,854 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 21:08:33,856 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 21:08:33,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-02 21:08:33,870 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-02 21:08:33,870 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 21:08:33,870 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3 Supporting invariants [] [2022-11-02 21:08:33,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:33,921 INFO L156 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2022-11-02 21:08:33,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:33,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:08:33,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:34,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:08:34,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:34,063 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 21:08:34,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:34,086 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62 states and 66 transitions. Complement of second has 7 states. [2022-11-02 21:08:34,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 21:08:34,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-11-02 21:08:34,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 27 letters. Loop has 2 letters. [2022-11-02 21:08:34,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:34,088 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 21:08:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:34,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:08:34,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:34,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:08:34,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:34,236 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 21:08:34,236 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:34,257 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62 states and 66 transitions. Complement of second has 7 states. [2022-11-02 21:08:34,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 21:08:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-11-02 21:08:34,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 27 letters. Loop has 2 letters. [2022-11-02 21:08:34,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:34,259 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 21:08:34,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:08:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:34,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:08:34,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:08:34,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:08:34,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:08:34,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:08:34,421 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 2 loop predicates [2022-11-02 21:08:34,421 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:34,442 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 73 states and 79 transitions. Complement of second has 6 states. [2022-11-02 21:08:34,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 21:08:34,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:08:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-11-02 21:08:34,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 27 letters. Loop has 2 letters. [2022-11-02 21:08:34,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:34,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 29 letters. Loop has 2 letters. [2022-11-02 21:08:34,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:34,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 27 letters. Loop has 4 letters. [2022-11-02 21:08:34,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 21:08:34,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 79 transitions. [2022-11-02 21:08:34,448 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 21:08:34,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 0 states and 0 transitions. [2022-11-02 21:08:34,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 21:08:34,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 21:08:34,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 21:08:34,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:08:34,449 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:08:34,450 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:08:34,450 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:08:34,450 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-02 21:08:34,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 21:08:34,450 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 21:08:34,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 21:08:34,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 09:08:34 BoogieIcfgContainer [2022-11-02 21:08:34,458 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 21:08:34,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:08:34,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:08:34,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:08:34,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:08:09" (3/4) ... [2022-11-02 21:08:34,463 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:08:34,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:08:34,464 INFO L158 Benchmark]: Toolchain (without parser) took 25924.57ms. Allocated memory was 100.7MB in the beginning and 172.0MB in the end (delta: 71.3MB). Free memory was 67.4MB in the beginning and 49.1MB in the end (delta: 18.3MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2022-11-02 21:08:34,464 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:08:34,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.01ms. Allocated memory is still 100.7MB. Free memory was 67.2MB in the beginning and 70.7MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:08:34,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.47ms. Allocated memory is still 100.7MB. Free memory was 70.7MB in the beginning and 69.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:08:34,465 INFO L158 Benchmark]: Boogie Preprocessor took 53.62ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 67.8MB in the end (delta: 975.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:08:34,466 INFO L158 Benchmark]: RCFGBuilder took 427.87ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 57.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:08:34,466 INFO L158 Benchmark]: BuchiAutomizer took 24760.78ms. Allocated memory was 100.7MB in the beginning and 172.0MB in the end (delta: 71.3MB). Free memory was 57.5MB in the beginning and 50.1MB in the end (delta: 7.4MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2022-11-02 21:08:34,467 INFO L158 Benchmark]: Witness Printer took 4.78ms. Allocated memory is still 172.0MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:08:34,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.01ms. Allocated memory is still 100.7MB. Free memory was 67.2MB in the beginning and 70.7MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.47ms. Allocated memory is still 100.7MB. Free memory was 70.7MB in the beginning and 69.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.62ms. Allocated memory is still 100.7MB. Free memory was 68.8MB in the beginning and 67.8MB in the end (delta: 975.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 427.87ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 57.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 24760.78ms. Allocated memory was 100.7MB in the beginning and 172.0MB in the end (delta: 71.3MB). Free memory was 57.5MB in the beginning and 50.1MB in the end (delta: 7.4MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. * Witness Printer took 4.78ms. Allocated memory is still 172.0MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x1][x1] + 21 and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x2][x2] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[x2][x2] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.6s and 8 iterations. TraceHistogramMax:10. Analysis of lassos took 22.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 90/90 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 53 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital163 mio100 ax111 hnf100 lsp86 ukn65 mio100 lsp38 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 21:08:34,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-02 21:08:34,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:34,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:08:35,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dc11bce-adde-4dad-8c67-b9f268e76ecc/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE