./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/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_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/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_14831c45-0b25-425e-b1e3-7db924beeaef/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 d0878af360c86b536b5b3bc8d222f1c5ce26337b4ad6227d126c258cfe065cc9 --- 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 20:47:08,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:47:08,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:47:08,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:47:08,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:47:08,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:47:08,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:47:08,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:47:08,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:47:08,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:47:08,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:47:08,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:47:08,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:47:08,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:47:08,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:47:08,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:47:08,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:47:08,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:47:08,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:47:08,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:47:08,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:47:08,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:47:08,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:47:08,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:47:08,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:47:08,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:47:08,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:47:08,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:47:08,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:47:08,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:47:08,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:47:08,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:47:08,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:47:08,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:47:08,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:47:08,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:47:08,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:47:08,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:47:08,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:47:08,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:47:08,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:47:08,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:47:08,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:47:08,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:47:08,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:47:08,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:47:08,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:47:08,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:47:08,327 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:47:08,327 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:47:08,327 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:47:08,328 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:47:08,329 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:47:08,329 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:47:08,329 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:47:08,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:47:08,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:47:08,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:47:08,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:47:08,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:47:08,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:47:08,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:47:08,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:47:08,332 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:47:08,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:47:08,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:47:08,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:47:08,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:47:08,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:47:08,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:47:08,337 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:47:08,337 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_14831c45-0b25-425e-b1e3-7db924beeaef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0878af360c86b536b5b3bc8d222f1c5ce26337b4ad6227d126c258cfe065cc9 [2022-11-02 20:47:08,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:47:08,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:47:08,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:47:08,712 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:47:08,713 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:47:08,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2022-11-02 20:47:08,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/data/eccacabe1/0571c81ad6134bffbdd33b5649164c75/FLAG664caf0c9 [2022-11-02 20:47:09,487 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:47:09,488 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2022-11-02 20:47:09,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/data/eccacabe1/0571c81ad6134bffbdd33b5649164c75/FLAG664caf0c9 [2022-11-02 20:47:09,757 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/data/eccacabe1/0571c81ad6134bffbdd33b5649164c75 [2022-11-02 20:47:09,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:47:09,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:47:09,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:47:09,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:47:09,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:47:09,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:47:09" (1/1) ... [2022-11-02 20:47:09,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@874a6af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:09, skipping insertion in model container [2022-11-02 20:47:09,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:47:09" (1/1) ... [2022-11-02 20:47:09,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:47:09,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:47:10,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:47:10,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:47:10,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:47:10,209 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:47:10,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10 WrapperNode [2022-11-02 20:47:10,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:47:10,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:47:10,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:47:10,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:47:10,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,252 INFO L138 Inliner]: procedures = 110, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-11-02 20:47:10,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:47:10,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:47:10,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:47:10,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:47:10,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:47:10,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:47:10,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:47:10,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:47:10,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (1/1) ... [2022-11-02 20:47:10,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:10,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:10,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:10,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:47:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:47:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:47:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:47:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:47:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:47:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:47:10,484 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:47:10,486 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:47:10,632 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:47:10,638 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:47:10,638 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:47:10,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:47:10 BoogieIcfgContainer [2022-11-02 20:47:10,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:47:10,642 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:47:10,642 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:47:10,647 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:47:10,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:47:10,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:47:09" (1/3) ... [2022-11-02 20:47:10,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13f8ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:47:10, skipping insertion in model container [2022-11-02 20:47:10,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:47:10,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:47:10" (2/3) ... [2022-11-02 20:47:10,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13f8ac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:47:10, skipping insertion in model container [2022-11-02 20:47:10,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:47:10,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:47:10" (3/3) ... [2022-11-02 20:47:10,651 INFO L332 chiAutomizerObserver]: Analyzing ICFG GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i [2022-11-02 20:47:10,734 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:47:10,734 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:47:10,734 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:47:10,735 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:47:10,735 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:47:10,735 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:47:10,735 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:47:10,735 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:47:10,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 20:47:10,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:10,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:47:10,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:47:10,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:47:10,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:47:10,767 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:47:10,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 20:47:10,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:10,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:47:10,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:47:10,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:47:10,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:47:10,778 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~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 12#L552true assume !main_#t~short9#1; 2#L552-2true assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 8#L556-2true [2022-11-02 20:47:10,779 INFO L750 eck$LassoCheckResult]: Loop: 8#L556-2true call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 11#L555-1true assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 7#L556true assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 8#L556-2true [2022-11-02 20:47:10,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:10,786 INFO L85 PathProgramCache]: Analyzing trace with hash 925671, now seen corresponding path program 1 times [2022-11-02 20:47:10,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:10,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305688275] [2022-11-02 20:47:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:10,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:11,158 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 20:47:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:11,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305688275] [2022-11-02 20:47:11,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305688275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:11,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:11,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:47:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749116515] [2022-11-02 20:47:11,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:11,170 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:47:11,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:11,173 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 1 times [2022-11-02 20:47:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:11,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533715105] [2022-11-02 20:47:11,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:11,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:11,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:11,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:47:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:47:11,568 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 20:47:11,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:47:11,595 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2022-11-02 20:47:11,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2022-11-02 20:47:11,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:11,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 7 states and 8 transitions. [2022-11-02 20:47:11,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-02 20:47:11,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-02 20:47:11,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-11-02 20:47:11,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:11,608 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-02 20:47:11,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-11-02 20:47:11,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-02 20:47:11,635 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 20:47:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-11-02 20:47:11,659 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-02 20:47:11,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:47:11,667 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-02 20:47:11,667 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:47:11,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-11-02 20:47:11,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:11,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:47:11,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:47:11,669 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:47:11,669 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:47:11,669 INFO L748 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 37#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 40#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 34#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 35#L556-2 [2022-11-02 20:47:11,669 INFO L750 eck$LassoCheckResult]: Loop: 35#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 39#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 38#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 35#L556-2 [2022-11-02 20:47:11,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:11,670 INFO L85 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2022-11-02 20:47:11,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:11,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929105978] [2022-11-02 20:47:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:11,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 2 times [2022-11-02 20:47:11,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:11,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682046732] [2022-11-02 20:47:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:11,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:11,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029994, now seen corresponding path program 1 times [2022-11-02 20:47:11,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:11,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983489444] [2022-11-02 20:47:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:11,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:11,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:13,109 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:47:13,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:47:13,110 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:47:13,110 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:47:13,110 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:47:13,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:13,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:47:13,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:47:13,110 INFO L133 ssoRankerPreferences]: Filename of dumped script: GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i_Iteration2_Lasso [2022-11-02 20:47:13,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:47:13,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:47:13,129 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 20:47:13,139 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 20:47:13,141 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 20:47:13,145 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 20:47:13,147 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 20:47:13,149 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 20:47:13,152 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 20:47:13,155 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 20:47:13,158 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 20:47:13,161 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 20:47:13,163 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 20:47:13,166 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 20:47:13,168 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 20:47:13,171 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 20:47:13,174 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 20:47:13,177 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 20:47:13,179 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 20:47:13,182 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 20:47:13,184 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 20:47:13,187 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 20:47:13,843 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 20:47:14,406 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:47:14,413 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:47:14,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,436 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 20:47:14,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:14,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:14,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:14,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:47:14,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:14,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:14,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:47:14,522 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 20:47:14,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:14,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:14,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:14,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:14,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:14,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:47:14,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:47:14,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,636 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:14,637 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:14,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:14,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:14,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,698 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 20:47:14,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:14,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:14,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:14,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:47:14,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:14,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,763 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:47:14,770 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 20:47:14,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:14,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:14,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:14,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:14,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:14,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,846 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,853 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 20:47:14,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:47:14,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:14,872 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:14,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:14,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:14,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,932 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 20:47:14,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:47:14,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:14,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:14,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:14,958 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:14,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:14,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:14,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:14,983 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:14,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:47:14,985 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 20:47:14,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:14,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:14,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:14,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:14,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:14,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:15,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,064 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,074 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 20:47:15,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,088 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:47:15,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:47:15,089 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:47:15,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,152 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,156 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 20:47:15,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:15,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:47:15,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,221 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,227 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 20:47:15,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:47:15,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:15,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,296 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,306 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 20:47:15,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:15,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:47:15,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,368 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,379 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 20:47:15,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:15,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:15,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:47:15,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,429 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:47:15,431 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 20:47:15,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,444 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:15,444 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:15,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,494 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 20:47:15,498 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 20:47:15,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:15,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,544 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 20:47:15,547 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 20:47:15,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:15,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,562 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,590 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 20:47:15,593 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 20:47:15,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:15,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,639 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 20:47:15,641 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 20:47:15,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:47:15,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:47:15,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:47:15,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,713 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,726 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 20:47:15,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:15,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:15,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 20:47:15,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,796 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 20:47:15,803 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 20:47:15,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:15,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:15,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,859 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 20:47:15,863 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 20:47:15,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:15,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:15,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:15,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:15,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:15,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:15,950 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:15,957 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 20:47:15,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-02 20:47:15,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:15,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:15,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:15,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:15,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:15,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:15,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:16,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-02 20:47:16,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:16,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:16,008 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:16,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 20:47:16,009 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 20:47:16,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:16,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:16,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:16,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:16,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:16,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:16,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:16,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:16,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:16,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:16,099 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:16,105 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 20:47:16,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:16,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:16,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:16,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:16,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-02 20:47:16,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:16,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:16,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:16,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:16,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:16,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:16,181 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:16,185 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 20:47:16,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 20:47:16,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:16,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:16,198 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:47:16,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:16,240 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-02 20:47:16,240 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-02 20:47:16,275 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:47:16,333 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-11-02 20:47:16,333 INFO L444 ModelExtractionUtils]: 7 out of 21 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-11-02 20:47:16,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:16,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:16,341 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:16,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-02 20:47:16,393 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:47:16,420 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-02 20:47:16,421 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:47:16,421 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1 + 3*v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_1 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_1 >= 0] [2022-11-02 20:47:16,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:16,635 INFO L156 tatePredicateManager]: 22 out of 25 supporting invariants were superfluous and have been removed [2022-11-02 20:47:16,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:16,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 20:47:16,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:47:16,803 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-02 20:47:16,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 20:47:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:16,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:47:16,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:47:16,984 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 20:47:16,987 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-02 20:47:16,989 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 20:47:17,079 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 13 states and 16 transitions. Complement of second has 8 states. [2022-11-02 20:47:17,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:47:17,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 20:47:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2022-11-02 20:47:17,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-02 20:47:17,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:47:17,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-02 20:47:17,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:47:17,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-02 20:47:17,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:47:17,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2022-11-02 20:47:17,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:17,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2022-11-02 20:47:17,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-02 20:47:17,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-02 20:47:17,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2022-11-02 20:47:17,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:47:17,088 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-02 20:47:17,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2022-11-02 20:47:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-02 20:47:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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 20:47:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-11-02 20:47:17,090 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-02 20:47:17,090 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-02 20:47:17,091 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:47:17,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2022-11-02 20:47:17,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:17,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:47:17,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:47:17,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:17,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:47:17,093 INFO L748 eck$LassoCheckResult]: Stem: 209#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 218#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 207#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 208#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 217#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 211#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 212#L556-2 [2022-11-02 20:47:17,093 INFO L750 eck$LassoCheckResult]: Loop: 212#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 215#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 219#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 212#L556-2 [2022-11-02 20:47:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029996, now seen corresponding path program 1 times [2022-11-02 20:47:17,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:17,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786340946] [2022-11-02 20:47:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:17,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:17,575 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 20:47:17,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:17,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786340946] [2022-11-02 20:47:17,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786340946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:17,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:17,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:47:17,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18433017] [2022-11-02 20:47:17,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:17,577 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:47:17,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:17,577 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 3 times [2022-11-02 20:47:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:17,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450255722] [2022-11-02 20:47:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:17,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:17,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:17,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:17,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:17,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:17,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:47:17,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:47:17,744 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 20:47:17,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:47:17,810 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-11-02 20:47:17,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2022-11-02 20:47:17,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:17,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 17 transitions. [2022-11-02 20:47:17,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-02 20:47:17,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-02 20:47:17,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2022-11-02 20:47:17,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:47:17,812 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-02 20:47:17,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2022-11-02 20:47:17,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-11-02 20:47:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 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 20:47:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-02 20:47:17,814 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-02 20:47:17,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:47:17,816 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-02 20:47:17,817 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:47:17,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2022-11-02 20:47:17,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:17,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:47:17,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:47:17,818 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:17,818 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:47:17,818 INFO L748 eck$LassoCheckResult]: Stem: 252#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 253#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 260#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 250#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 251#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 258#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 256#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 257#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 259#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 254#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 255#L556-2 [2022-11-02 20:47:17,818 INFO L750 eck$LassoCheckResult]: Loop: 255#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 261#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 262#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 255#L556-2 [2022-11-02 20:47:17,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash 658021387, now seen corresponding path program 1 times [2022-11-02 20:47:17,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:17,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126160160] [2022-11-02 20:47:17,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:17,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:17,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:17,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 4 times [2022-11-02 20:47:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:17,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106490941] [2022-11-02 20:47:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:17,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:17,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:17,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:17,937 INFO L85 PathProgramCache]: Analyzing trace with hash 884417224, now seen corresponding path program 2 times [2022-11-02 20:47:17,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:17,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590871131] [2022-11-02 20:47:17,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:17,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:17,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:18,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:20,602 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:47:20,602 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:47:20,602 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:47:20,603 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:47:20,603 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:47:20,603 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:20,603 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:47:20,603 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:47:20,603 INFO L133 ssoRankerPreferences]: Filename of dumped script: GulwaniJainKoskinen-2009PLDI-Fig1-alloca.i_Iteration4_Lasso [2022-11-02 20:47:20,603 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:47:20,603 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:47:20,617 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 20:47:21,236 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 20:47:21,247 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 20:47:21,251 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 20:47:21,255 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 20:47:21,257 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 20:47:21,260 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 20:47:21,262 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 20:47:21,264 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 20:47:21,268 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 20:47:21,270 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 20:47:21,273 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 20:47:21,276 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 20:47:21,278 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 20:47:21,282 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 20:47:21,284 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 20:47:21,286 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 20:47:21,288 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 20:47:21,290 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 20:47:21,294 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 20:47:21,296 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 20:47:21,300 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 20:47:21,305 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 20:47:21,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:47:21,818 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:47:21,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:21,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:21,821 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:21,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:47:21,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:21,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:21,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:21,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:21,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-02 20:47:21,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:21,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:21,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:21,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-02 20:47:21,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:21,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:21,892 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:21,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-02 20:47:21,895 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 20:47:21,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:21,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:21,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:21,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:21,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:21,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:21,923 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:21,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-11-02 20:47:21,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:21,950 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:21,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-02 20:47:21,952 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 20:47:21,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:21,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:21,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:21,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:21,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:21,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:22,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:22,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:22,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:22,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:22,043 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:22,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-02 20:47:22,047 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 20:47:22,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:22,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:22,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:22,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:22,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:22,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:22,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:22,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:22,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:22,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:22,127 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:22,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-02 20:47:22,130 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 20:47:22,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:22,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:22,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:47:22,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:22,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:47:22,142 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:47:22,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:47:22,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-11-02 20:47:22,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:22,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:22,168 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:22,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-02 20:47:22,172 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 20:47:22,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:47:22,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:47:22,182 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:47:22,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:47:22,193 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-02 20:47:22,194 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-02 20:47:22,219 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:47:22,275 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-02 20:47:22,275 INFO L444 ModelExtractionUtils]: 4 out of 21 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-11-02 20:47:22,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:47:22,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:22,276 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:47:22,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-02 20:47:22,278 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:47:22,291 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2022-11-02 20:47:22,291 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:47:22,291 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_2) = 2*v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_2 - 2*v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_2 + 1 Supporting invariants [] [2022-11-02 20:47:22,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:22,414 INFO L156 tatePredicateManager]: 22 out of 24 supporting invariants were superfluous and have been removed [2022-11-02 20:47:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:22,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:47:22,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:47:22,504 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:47:22,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-02 20:47:22,539 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 20:47:22,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 20:47:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:22,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:47:22,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:47:22,626 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 20:47:22,627 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2022-11-02 20:47:22,627 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 20:47:22,711 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 19 states and 23 transitions. Complement of second has 9 states. [2022-11-02 20:47:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:47:22,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 20:47:22,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2022-11-02 20:47:22,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-02 20:47:22,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:47:22,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-02 20:47:22,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:47:22,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-02 20:47:22,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:47:22,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2022-11-02 20:47:22,717 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:22,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 23 transitions. [2022-11-02 20:47:22,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-02 20:47:22,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-02 20:47:22,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2022-11-02 20:47:22,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:47:22,718 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-02 20:47:22,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2022-11-02 20:47:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-02 20:47:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 18 states have internal predecessors, (23), 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 20:47:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-11-02 20:47:22,720 INFO L240 hiAutomatonCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-02 20:47:22,720 INFO L428 stractBuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-11-02 20:47:22,720 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 20:47:22,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2022-11-02 20:47:22,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-02 20:47:22,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:47:22,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:47:22,722 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1] [2022-11-02 20:47:22,722 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-02 20:47:22,722 INFO L748 eck$LassoCheckResult]: Stem: 453#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 454#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 462#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 451#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 452#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 463#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 469#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 468#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 467#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 464#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 465#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 461#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 455#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 456#L556-2 [2022-11-02 20:47:22,722 INFO L750 eck$LassoCheckResult]: Loop: 456#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 459#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 466#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 456#L556-2 [2022-11-02 20:47:22,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:22,723 INFO L85 PathProgramCache]: Analyzing trace with hash 884417226, now seen corresponding path program 3 times [2022-11-02 20:47:22,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:22,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108491305] [2022-11-02 20:47:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:22,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:22,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-02 20:47:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:47:23,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:23,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108491305] [2022-11-02 20:47:23,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108491305] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:47:23,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021144770] [2022-11-02 20:47:23,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 20:47:23,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:47:23,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:23,182 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:47:23,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-02 20:47:23,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-02 20:47:23,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:47:23,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-02 20:47:23,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:47:23,316 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:47:23,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-02 20:47:23,371 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-02 20:47:23,371 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 1 case distinctions, treesize of input 28 treesize of output 31 [2022-11-02 20:47:23,399 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 20:47:23,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-02 20:47:23,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2022-11-02 20:47:23,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-02 20:47:23,486 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 19 treesize of output 18 [2022-11-02 20:47:23,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-11-02 20:47:23,572 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:23,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:47:23,676 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:47:23,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-02 20:47:35,911 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc10#1.base_83| Int) (|v_ULTIMATE.start_main_~tmp~0#1.offset_65| Int) (|ULTIMATE.start_main_~maxId~0#1.offset| Int) (v_ArrVal_206 Int)) (let ((.cse0 (select v_arrayElimArr_1 |v_ULTIMATE.start_main_~tmp~0#1.offset_65|))) (or (not (<= .cse0 0)) (< .cse0 (+ (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_83| v_arrayElimArr_1) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) 1)) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_83| (store (select |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_83|) |v_ULTIMATE.start_main_~tmp~0#1.offset_65| v_ArrVal_206)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) v_ArrVal_206) (not (<= (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) 1) v_ArrVal_206)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_83|) 0))))) is different from false [2022-11-02 20:47:36,064 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:36,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021144770] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:47:36,064 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:47:36,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2022-11-02 20:47:36,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303126297] [2022-11-02 20:47:36,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:47:36,065 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:47:36,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash 45842, now seen corresponding path program 5 times [2022-11-02 20:47:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:36,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616669846] [2022-11-02 20:47:36,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:36,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:36,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:36,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:36,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:36,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-02 20:47:36,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=251, Unknown=2, NotChecked=32, Total=342 [2022-11-02 20:47:36,238 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand has 19 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 19 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 20:47:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:47:36,665 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-11-02 20:47:36,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 37 transitions. [2022-11-02 20:47:36,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-02 20:47:36,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 30 states and 33 transitions. [2022-11-02 20:47:36,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-11-02 20:47:36,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-11-02 20:47:36,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 33 transitions. [2022-11-02 20:47:36,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:47:36,667 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-11-02 20:47:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 33 transitions. [2022-11-02 20:47:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2022-11-02 20:47:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 27 states have internal predecessors, (31), 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 20:47:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-02 20:47:36,670 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-02 20:47:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:47:36,672 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-02 20:47:36,672 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-02 20:47:36,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 31 transitions. [2022-11-02 20:47:36,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-11-02 20:47:36,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:47:36,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:47:36,674 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 3, 2, 1, 1, 1, 1] [2022-11-02 20:47:36,674 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 2, 1] [2022-11-02 20:47:36,674 INFO L748 eck$LassoCheckResult]: Stem: 618#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 619#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 627#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 616#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 617#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 636#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 637#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 635#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 634#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 633#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 631#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 632#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 622#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 623#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 626#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 630#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 643#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 641#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 620#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 621#L556-2 [2022-11-02 20:47:36,674 INFO L750 eck$LassoCheckResult]: Loop: 621#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 628#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 629#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 624#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 625#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 642#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 639#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 640#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 638#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 621#L556-2 [2022-11-02 20:47:36,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:36,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1816884246, now seen corresponding path program 4 times [2022-11-02 20:47:36,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:36,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495444809] [2022-11-02 20:47:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:36,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:47:37,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:37,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495444809] [2022-11-02 20:47:37,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495444809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:47:37,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870768884] [2022-11-02 20:47:37,917 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 20:47:37,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:47:37,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:47:37,919 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:47:37,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-11-02 20:47:38,055 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 20:47:38,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:47:38,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-02 20:47:38,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:47:38,093 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:47:38,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-02 20:47:38,187 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-02 20:47:38,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 20:47:38,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2022-11-02 20:47:38,304 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:47:38,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-02 20:47:38,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-11-02 20:47:38,400 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-02 20:47:38,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-11-02 20:47:38,578 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-02 20:47:38,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 42 [2022-11-02 20:47:38,781 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-02 20:47:38,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 45 [2022-11-02 20:47:38,959 INFO L356 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2022-11-02 20:47:38,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 34 [2022-11-02 20:47:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:38,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:47:45,647 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:47:45,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 88 [2022-11-02 20:47:48,494 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_85| Int) (v_arrayElimArr_2 (Array Int Int)) (v_ArrVal_265 Int) (v_arrayElimArr_4 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~maxId~0#1.offset| Int) (|v_ULTIMATE.start_main_~tmp~0#1.offset_68| Int)) (let ((.cse1 (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85| v_arrayElimArr_2)) (.cse0 (select v_arrayElimArr_2 |v_ULTIMATE.start_main_~tmp~0#1.offset_68|)) (.cse2 (select v_arrayElimArr_3 |v_ULTIMATE.start_main_~tmp~0#1.offset_68|)) (.cse3 (select v_arrayElimArr_4 |v_ULTIMATE.start_main_~tmp~0#1.offset_68|))) (or (< .cse0 (+ (select (select .cse1 |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) 1)) (= .cse0 (select (select .cse1 |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|)) (not (= (store v_arrayElimArr_4 |v_ULTIMATE.start_main_~tmp~0#1.offset_68| .cse2) v_arrayElimArr_3)) (not (<= .cse2 0)) (= .cse3 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85| v_arrayElimArr_4) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|)) (not (<= .cse3 (+ .cse2 1))) (not (<= (+ (select (select |c_#memory_int| |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) 1) v_ArrVal_265)) (not (<= .cse0 (+ .cse3 1))) (= .cse2 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85| v_arrayElimArr_3) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|)) (not (= v_arrayElimArr_4 (store v_arrayElimArr_2 |v_ULTIMATE.start_main_~tmp~0#1.offset_68| .cse3))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_85|) 0)) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85| (store (select |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_85|) |v_ULTIMATE.start_main_~tmp~0#1.offset_68| v_ArrVal_265)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) v_ArrVal_265)))) is different from false [2022-11-02 20:47:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:48,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870768884] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:47:48,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:47:48,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 15] total 38 [2022-11-02 20:47:48,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309684055] [2022-11-02 20:47:48,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:47:48,809 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:47:48,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash -803259212, now seen corresponding path program 1 times [2022-11-02 20:47:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:48,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35439823] [2022-11-02 20:47:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:48,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:47:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:47:48,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:47:49,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-02 20:47:49,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1152, Unknown=1, NotChecked=72, Total=1482 [2022-11-02 20:47:49,536 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. cyclomatic complexity: 6 Second operand has 39 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 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 20:48:02,935 WARN L234 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:48:05,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:05,218 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-11-02 20:48:05,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 53 transitions. [2022-11-02 20:48:05,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:48:05,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 44 states and 47 transitions. [2022-11-02 20:48:05,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-11-02 20:48:05,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2022-11-02 20:48:05,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 47 transitions. [2022-11-02 20:48:05,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:48:05,221 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 47 transitions. [2022-11-02 20:48:05,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 47 transitions. [2022-11-02 20:48:05,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2022-11-02 20:48:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.075) internal successors, (43), 39 states have internal predecessors, (43), 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 20:48:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-11-02 20:48:05,225 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-11-02 20:48:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-02 20:48:05,226 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-11-02 20:48:05,226 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-02 20:48:05,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 43 transitions. [2022-11-02 20:48:05,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:48:05,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:48:05,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:48:05,229 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 6, 2, 1, 1, 1, 1] [2022-11-02 20:48:05,229 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2022-11-02 20:48:05,229 INFO L748 eck$LassoCheckResult]: Stem: 905#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 906#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 913#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 903#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 904#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 911#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 926#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 924#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 923#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 921#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 922#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 916#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 909#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 910#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 912#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 934#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 933#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 932#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 931#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 930#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 929#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 928#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 927#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 920#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 925#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 918#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 919#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 907#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 908#L556-2 [2022-11-02 20:48:05,229 INFO L750 eck$LassoCheckResult]: Loop: 908#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 942#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 935#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 917#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 914#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 915#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 941#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 940#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 939#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 937#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 938#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 936#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 908#L556-2 [2022-11-02 20:48:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1973167277, now seen corresponding path program 5 times [2022-11-02 20:48:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:05,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079191889] [2022-11-02 20:48:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:05,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:07,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:07,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079191889] [2022-11-02 20:48:07,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079191889] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:48:07,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107315232] [2022-11-02 20:48:07,823 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-02 20:48:07,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:48:07,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:48:07,830 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:48:07,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-11-02 20:48:07,982 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-11-02 20:48:07,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:48:07,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-02 20:48:07,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:08,024 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-02 20:48:08,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-02 20:48:08,069 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-02 20:48:08,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-02 20:48:08,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-02 20:48:08,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:48:08,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-11-02 20:48:08,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:48:08,375 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-02 20:48:08,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 20:48:08,391 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-02 20:48:08,392 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 55 [2022-11-02 20:48:08,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:48:08,505 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-02 20:48:08,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 37 [2022-11-02 20:48:08,692 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:48:08,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 43 [2022-11-02 20:48:08,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-02 20:48:08,796 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:48:08,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-11-02 20:48:08,856 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:48:08,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-11-02 20:48:08,907 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:48:08,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-11-02 20:48:17,025 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-02 20:48:17,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 38 [2022-11-02 20:48:27,925 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-02 20:48:27,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 46 [2022-11-02 20:48:28,120 INFO L356 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2022-11-02 20:48:28,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 31 [2022-11-02 20:48:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 20:48:28,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:48:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 54 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 20:48:42,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107315232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:48:42,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:48:42,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 14] total 40 [2022-11-02 20:48:42,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372641978] [2022-11-02 20:48:42,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:48:42,480 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:48:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:42,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1662545091, now seen corresponding path program 2 times [2022-11-02 20:48:42,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:42,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601962730] [2022-11-02 20:48:42,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:42,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:48:42,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:48:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:48:42,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:48:43,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:48:43,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-11-02 20:48:43,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1394, Unknown=99, NotChecked=0, Total=1640 [2022-11-02 20:48:43,736 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. cyclomatic complexity: 6 Second operand has 41 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 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 20:48:45,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:48:45,162 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2022-11-02 20:48:45,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 69 transitions. [2022-11-02 20:48:45,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:48:45,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 45 states and 48 transitions. [2022-11-02 20:48:45,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-11-02 20:48:45,166 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2022-11-02 20:48:45,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 48 transitions. [2022-11-02 20:48:45,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:48:45,166 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-11-02 20:48:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 48 transitions. [2022-11-02 20:48:45,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2022-11-02 20:48:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.069767441860465) internal successors, (46), 42 states have internal predecessors, (46), 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 20:48:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-11-02 20:48:45,170 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-11-02 20:48:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:48:45,171 INFO L428 stractBuchiCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-11-02 20:48:45,171 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-02 20:48:45,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 46 transitions. [2022-11-02 20:48:45,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:48:45,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:48:45,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:48:45,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 9, 7, 2, 1, 1, 1, 1] [2022-11-02 20:48:45,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2022-11-02 20:48:45,175 INFO L748 eck$LassoCheckResult]: Stem: 1241#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1242#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 1251#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 1239#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 1240#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1272#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1271#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1249#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1250#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1261#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1259#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1258#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1257#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1247#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1248#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1245#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1246#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1270#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1269#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1268#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1267#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1266#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1265#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1264#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1263#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1262#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1256#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1260#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1255#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1252#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1243#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1244#L556-2 [2022-11-02 20:48:45,176 INFO L750 eck$LassoCheckResult]: Loop: 1244#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1281#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1273#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1253#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1254#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1276#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1280#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1279#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1278#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1275#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1277#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1274#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1244#L556-2 [2022-11-02 20:48:45,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:48:45,177 INFO L85 PathProgramCache]: Analyzing trace with hash -203905938, now seen corresponding path program 6 times [2022-11-02 20:48:45,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:48:45,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583056257] [2022-11-02 20:48:45,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:48:45,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:48:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:48:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 3 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:48:47,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:48:47,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583056257] [2022-11-02 20:48:47,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583056257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:48:47,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699266887] [2022-11-02 20:48:47,478 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-02 20:48:47,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:48:47,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:48:47,481 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:48:47,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-11-02 20:48:47,714 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-11-02 20:48:47,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:48:47,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-02 20:48:47,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:48:47,733 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-02 20:48:47,736 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 6 treesize of output 5 [2022-11-02 20:48:47,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:48:47,752 INFO L356 Elim1Store]: treesize reduction 4, result has 55.6 percent of original size [2022-11-02 20:48:47,752 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 20:48:47,838 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-02 20:48:47,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 20:48:47,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-02 20:48:47,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2022-11-02 20:48:48,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2022-11-02 20:48:48,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2022-11-02 20:48:48,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-02 20:48:48,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2022-11-02 20:48:48,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2022-11-02 20:48:50,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 38 [2022-11-02 20:48:50,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 40 [2022-11-02 20:48:50,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 46 [2022-11-02 20:48:50,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2022-11-02 20:48:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-02 20:48:50,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:49:07,150 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_89| Int) (v_ArrVal_445 Int) (v_ArrVal_448 (Array Int Int)) (v_ArrVal_453 Int) (|v_ULTIMATE.start_main_~tmp~0#1.offset_74| Int) (|ULTIMATE.start_main_~maxId~0#1.offset| Int)) (let ((.cse2 (select |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_89|)) (.cse1 (select v_ArrVal_448 |v_ULTIMATE.start_main_~tmp~0#1.offset_74|)) (.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|))) (or (let ((.cse0 (+ 2 .cse1))) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_89| (store v_ArrVal_448 |v_ULTIMATE.start_main_~tmp~0#1.offset_74| .cse0)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) .cse0)) (< v_ArrVal_453 (+ 1 (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_89| (store v_ArrVal_448 |v_ULTIMATE.start_main_~tmp~0#1.offset_74| v_ArrVal_453)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_89|) 0)) (< v_ArrVal_445 (+ (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_89| (store .cse2 |v_ULTIMATE.start_main_~tmp~0#1.offset_74| v_ArrVal_445)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) 1)) (let ((.cse3 (+ 2 .cse4))) (< (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_89| (store .cse2 |v_ULTIMATE.start_main_~tmp~0#1.offset_74| .cse3)) |c_ULTIMATE.start_main_~maxId~0#1.base|) |ULTIMATE.start_main_~maxId~0#1.offset|) .cse3)) (not (<= v_ArrVal_453 (+ 3 .cse1))) (= (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_#t~malloc10#1.base_89| v_ArrVal_448) |c_ULTIMATE.start_main_~id~0#1.base|) |c_ULTIMATE.start_main_~id~0#1.offset|) .cse1) (not (<= v_ArrVal_445 (+ 3 .cse4)))))) is different from false [2022-11-02 20:49:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 20:49:07,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699266887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:49:07,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:49:07,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 16] total 45 [2022-11-02 20:49:07,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589185138] [2022-11-02 20:49:07,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:49:07,293 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:49:07,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:07,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1662545091, now seen corresponding path program 3 times [2022-11-02 20:49:07,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:07,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225432437] [2022-11-02 20:49:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:07,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:49:07,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:49:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:49:07,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:49:08,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:49:08,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-02 20:49:08,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1775, Unknown=57, NotChecked=86, Total=2070 [2022-11-02 20:49:08,652 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. cyclomatic complexity: 6 Second operand has 46 states, 45 states have (on average 1.8666666666666667) internal successors, (84), 46 states have internal predecessors, (84), 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 20:49:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:49:11,569 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2022-11-02 20:49:11,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 72 transitions. [2022-11-02 20:49:11,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:49:11,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 48 states and 51 transitions. [2022-11-02 20:49:11,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-11-02 20:49:11,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2022-11-02 20:49:11,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 51 transitions. [2022-11-02 20:49:11,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:49:11,573 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-11-02 20:49:11,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 51 transitions. [2022-11-02 20:49:11,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-11-02 20:49:11,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.065217391304348) internal successors, (49), 45 states have internal predecessors, (49), 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 20:49:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2022-11-02 20:49:11,577 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-11-02 20:49:11,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-02 20:49:11,578 INFO L428 stractBuchiCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-11-02 20:49:11,578 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-02 20:49:11,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 49 transitions. [2022-11-02 20:49:11,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-11-02 20:49:11,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:49:11,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:49:11,581 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 8, 2, 1, 1, 1, 1] [2022-11-02 20:49:11,581 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 1] [2022-11-02 20:49:11,581 INFO L748 eck$LassoCheckResult]: Stem: 1617#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1618#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem15#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~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_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 1626#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 1615#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 1616#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1623#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1621#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1622#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1650#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1651#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1624#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1625#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1637#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1635#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1634#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1632#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1633#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1649#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1648#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1647#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1646#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1645#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1644#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1643#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1642#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1641#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1640#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1639#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1638#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1629#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1636#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1628#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1627#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1619#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1620#L556-2 [2022-11-02 20:49:11,582 INFO L750 eck$LassoCheckResult]: Loop: 1620#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1660#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1652#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1630#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1631#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1655#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1659#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1658#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1657#L556 assume main_#t~mem15#1 <= main_#t~mem16#1;havoc main_#t~mem15#1;havoc main_#t~mem16#1;call main_#t~mem17#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call write~int(1 + main_#t~mem17#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem17#1; 1654#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4); 1656#L555-1 assume !!(main_#t~mem12#1 != main_#t~mem13#1 && 0 != main_#t~nondet14#1);havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;call main_#t~mem15#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem16#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 1653#L556 assume !(main_#t~mem15#1 <= main_#t~mem16#1);havoc main_#t~mem15#1;havoc main_#t~mem16#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 1620#L556-2 [2022-11-02 20:49:11,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:49:11,583 INFO L85 PathProgramCache]: Analyzing trace with hash 909082893, now seen corresponding path program 7 times [2022-11-02 20:49:11,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:49:11,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582175170] [2022-11-02 20:49:11,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:49:11,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:49:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 11 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:14,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:49:14,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582175170] [2022-11-02 20:49:14,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582175170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:49:14,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504632139] [2022-11-02 20:49:14,424 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-02 20:49:14,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:49:14,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:49:14,425 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:49:14,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-11-02 20:49:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:49:14,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-02 20:49:14,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:49:14,664 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-02 20:49:14,665 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-02 20:49:14,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-02 20:49:14,710 INFO L356 Elim1Store]: treesize reduction 34, result has 34.6 percent of original size [2022-11-02 20:49:14,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 70 [2022-11-02 20:49:14,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-02 20:49:14,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-02 20:49:14,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-02 20:49:14,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:49:14,804 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 20 treesize of output 9 [2022-11-02 20:49:14,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-02 20:49:15,004 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-02 20:49:15,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 20:49:15,029 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:15,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 35 [2022-11-02 20:49:15,197 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:15,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 40 [2022-11-02 20:49:15,349 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:15,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 40 [2022-11-02 20:49:15,602 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:15,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 46 [2022-11-02 20:49:15,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-11-02 20:49:15,742 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:15,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 30 [2022-11-02 20:49:16,082 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:16,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 42 [2022-11-02 20:49:16,465 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:16,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 45 [2022-11-02 20:49:16,870 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:16,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 45 [2022-11-02 20:49:17,310 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:17,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 45 [2022-11-02 20:49:17,744 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-02 20:49:17,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 45 [2022-11-02 20:49:18,024 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-02 20:49:18,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 29 [2022-11-02 20:49:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 25 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:49:18,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:50:26,922 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-02 20:50:26,923 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-02 20:50:26,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 101 [2022-11-02 20:50:26,924 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:894) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkFeasibilityAndComputeInterpolants(LassoCheck.java:881) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkStemFeasibility(LassoCheck.java:836) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:751) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:157) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:341) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 44 more [2022-11-02 20:50:26,931 INFO L158 Benchmark]: Toolchain (without parser) took 197169.60ms. Allocated memory was 127.9MB in the beginning and 199.2MB in the end (delta: 71.3MB). Free memory was 91.4MB in the beginning and 161.2MB in the end (delta: -69.8MB). Peak memory consumption was 112.9MB. Max. memory is 16.1GB. [2022-11-02 20:50:26,932 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:50:26,932 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.00ms. Allocated memory is still 127.9MB. Free memory was 91.2MB in the beginning and 97.8MB in the end (delta: -6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:50:26,932 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.57ms. Allocated memory is still 127.9MB. Free memory was 97.8MB in the beginning and 96.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:50:26,932 INFO L158 Benchmark]: Boogie Preprocessor took 26.48ms. Allocated memory is still 127.9MB. Free memory was 96.3MB in the beginning and 94.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:50:26,933 INFO L158 Benchmark]: RCFGBuilder took 359.62ms. Allocated memory is still 127.9MB. Free memory was 94.6MB in the beginning and 82.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:50:26,933 INFO L158 Benchmark]: BuchiAutomizer took 196289.35ms. Allocated memory was 127.9MB in the beginning and 199.2MB in the end (delta: 71.3MB). Free memory was 82.6MB in the beginning and 161.2MB in the end (delta: -78.6MB). Peak memory consumption was 107.2MB. Max. memory is 16.1GB. [2022-11-02 20:50:26,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.00ms. Allocated memory is still 127.9MB. Free memory was 91.2MB in the beginning and 97.8MB in the end (delta: -6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.57ms. Allocated memory is still 127.9MB. Free memory was 97.8MB in the beginning and 96.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.48ms. Allocated memory is still 127.9MB. Free memory was 96.3MB in the beginning and 94.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 359.62ms. Allocated memory is still 127.9MB. Free memory was 94.6MB in the beginning and 82.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 196289.35ms. Allocated memory was 127.9MB in the beginning and 199.2MB in the end (delta: 71.3MB). Free memory was 82.6MB in the beginning and 161.2MB in the end (delta: -78.6MB). Peak memory consumption was 107.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-02 20:50:26,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2022-11-02 20:50:27,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2022-11-02 20:50:27,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-11-02 20:50:27,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:27,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14831c45-0b25-425e-b1e3-7db924beeaef/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")