./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/avg05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/avg05-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02f02b7f59fc1c3b5c77751f648b2e92e85109b700d3d48af7999437b36b94ea --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:30:15,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:30:15,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:30:15,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:30:15,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:30:15,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:30:15,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:30:15,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:30:15,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:30:15,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:30:15,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:30:15,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:30:15,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:30:15,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:30:15,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:30:15,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:30:15,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:30:15,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:30:15,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:30:15,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:30:15,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:30:15,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:30:15,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:30:15,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:30:15,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:30:15,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:30:15,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:30:15,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:30:15,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:30:15,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:30:15,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:30:15,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:30:15,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:30:15,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:30:15,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:30:15,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:30:15,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:30:15,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:30:15,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:30:15,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:30:15,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:30:15,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 08:30:15,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:30:15,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:30:15,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:30:15,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:30:15,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:30:15,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:30:15,645 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:30:15,646 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 08:30:15,646 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 08:30:15,646 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 08:30:15,647 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 08:30:15,647 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 08:30:15,648 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 08:30:15,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:30:15,648 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:30:15,649 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:30:15,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:30:15,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:30:15,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:30:15,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 08:30:15,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 08:30:15,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 08:30:15,651 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:30:15,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:30:15,652 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 08:30:15,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:30:15,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 08:30:15,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:30:15,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:30:15,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:30:15,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:30:15,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:30:15,656 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 08:30:15,657 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_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02f02b7f59fc1c3b5c77751f648b2e92e85109b700d3d48af7999437b36b94ea [2021-11-09 08:30:15,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:30:15,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:30:15,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:30:15,957 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:30:15,958 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:30:15,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/reducercommutativity/avg05-1.i [2021-11-09 08:30:16,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/data/4f43dc104/10870e4476144204a1591c6feaaa67dd/FLAG465375de3 [2021-11-09 08:30:16,550 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:30:16,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/sv-benchmarks/c/reducercommutativity/avg05-1.i [2021-11-09 08:30:16,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/data/4f43dc104/10870e4476144204a1591c6feaaa67dd/FLAG465375de3 [2021-11-09 08:30:17,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/data/4f43dc104/10870e4476144204a1591c6feaaa67dd [2021-11-09 08:30:17,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:30:17,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:30:17,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:30:17,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:30:17,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:30:17,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ca6f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17, skipping insertion in model container [2021-11-09 08:30:17,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:30:17,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:30:17,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/sv-benchmarks/c/reducercommutativity/avg05-1.i[1275,1288] [2021-11-09 08:30:17,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:30:17,222 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:30:17,243 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/sv-benchmarks/c/reducercommutativity/avg05-1.i[1275,1288] [2021-11-09 08:30:17,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:30:17,256 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:30:17,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17 WrapperNode [2021-11-09 08:30:17,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:30:17,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:30:17,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:30:17,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:30:17,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:30:17,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:30:17,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:30:17,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:30:17,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:30:17,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:30:17,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:30:17,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:30:17,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (1/1) ... [2021-11-09 08:30:17,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:17,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:17,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:17,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 08:30:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:30:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:30:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 08:30:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:30:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:30:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 08:30:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 08:30:17,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:30:17,722 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-11-09 08:30:17,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:30:17 BoogieIcfgContainer [2021-11-09 08:30:17,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:30:17,725 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 08:30:17,725 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 08:30:17,729 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 08:30:17,730 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:30:17,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 08:30:17" (1/3) ... [2021-11-09 08:30:17,731 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26d0b376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:30:17, skipping insertion in model container [2021-11-09 08:30:17,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:30:17,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:30:17" (2/3) ... [2021-11-09 08:30:17,732 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26d0b376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:30:17, skipping insertion in model container [2021-11-09 08:30:17,732 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:30:17,732 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:30:17" (3/3) ... [2021-11-09 08:30:17,733 INFO L389 chiAutomizerObserver]: Analyzing ICFG avg05-1.i [2021-11-09 08:30:17,779 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 08:30:17,779 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 08:30:17,779 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 08:30:17,779 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 08:30:17,779 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 08:30:17,779 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 08:30:17,780 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 08:30:17,780 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 08:30:17,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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) [2021-11-09 08:30:17,817 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-09 08:30:17,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:17,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:17,823 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 08:30:17,823 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:17,824 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 08:30:17,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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) [2021-11-09 08:30:17,829 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2021-11-09 08:30:17,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:17,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:17,830 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 08:30:17,830 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:17,850 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 8#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 15#L34-3true [2021-11-09 08:30:17,850 INFO L793 eck$LassoCheckResult]: Loop: 15#L34-3true assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 11#L34-2true main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 15#L34-3true [2021-11-09 08:30:17,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:17,856 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-09 08:30:17,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:17,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234148935] [2021-11-09 08:30:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:17,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:17,994 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:18,038 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:18,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:18,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-11-09 08:30:18,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:18,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693373526] [2021-11-09 08:30:18,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:18,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:18,052 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:18,061 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:18,063 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-11-09 08:30:18,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:18,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705173749] [2021-11-09 08:30:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:18,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:18,090 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:18,128 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:18,722 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 08:30:18,723 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 08:30:18,723 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 08:30:18,723 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 08:30:18,723 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 08:30:18,724 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:18,724 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 08:30:18,724 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 08:30:18,724 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration1_Lasso [2021-11-09 08:30:18,724 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 08:30:18,725 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 08:30:18,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:18,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:19,209 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 08:30:19,214 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 08:30:19,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,229 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 [2021-11-09 08:30:19,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 08:30:19,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:19,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:19,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:19,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,311 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 [2021-11-09 08:30:19,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:19,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:19,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:19,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 08:30:19,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 08:30:19,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 08:30:19,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:19,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:19,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:19,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,454 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,463 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 [2021-11-09 08:30:19,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:19,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:19,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 08:30:19,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 08:30:19,539 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 [2021-11-09 08:30:19,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:19,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:19,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:19,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 08:30:19,608 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 [2021-11-09 08:30:19,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:19,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:19,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:19,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 08:30:19,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 08:30:19,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:19,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:19,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:19,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,760 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 [2021-11-09 08:30:19,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 08:30:19,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:19,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:19,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,828 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,840 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 [2021-11-09 08:30:19,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:19,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:19,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-09 08:30:19,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:19,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:19,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:19,936 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:19,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-09 08:30:19,956 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 [2021-11-09 08:30:19,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:19,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:19,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:19,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:19,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:19,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:19,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:20,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:20,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:20,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:20,018 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:20,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-09 08:30:20,023 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 [2021-11-09 08:30:20,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:20,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:20,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:20,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:20,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:20,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:20,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:20,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:20,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:20,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:20,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:20,074 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:20,080 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 [2021-11-09 08:30:20,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-09 08:30:20,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:20,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:20,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:20,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:20,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:20,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:20,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:20,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:20,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:20,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:20,132 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:20,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-09 08:30:20,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 08:30:20,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:20,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:20,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:20,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:20,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:20,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:20,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:20,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:20,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:20,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:20,175 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:20,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-09 08:30:20,179 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 [2021-11-09 08:30:20,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:20,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:20,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:20,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:20,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:20,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:20,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:20,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:20,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:20,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:20,216 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:20,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-09 08:30:20,219 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 [2021-11-09 08:30:20,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:20,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:20,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:20,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:20,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:20,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:20,239 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 08:30:20,293 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-09 08:30:20,293 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-09 08:30:20,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:20,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:20,335 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:20,360 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 08:30:20,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-09 08:30:20,397 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-09 08:30:20,397 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 08:30:20,397 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1) = -8*ULTIMATE.start_main_~i~1 + 9*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1 Supporting invariants [] [2021-11-09 08:30:20,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:20,458 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-11-09 08:30:20,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:20,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 08:30:20,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:20,538 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:30:20,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:20,609 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 08:30:20,611 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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, 3 states have (on average 1.3333333333333333) 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) [2021-11-09 08:30:20,723 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 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, 3 states have (on average 1.3333333333333333) 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) Result 66 states and 92 transitions. Complement of second has 8 states. [2021-11-09 08:30:20,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 08:30:20,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2021-11-09 08:30:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2021-11-09 08:30:20,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-09 08:30:20,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:30:20,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-09 08:30:20,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:30:20,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-09 08:30:20,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:30:20,731 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 92 transitions. [2021-11-09 08:30:20,745 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:20,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 19 states and 24 transitions. [2021-11-09 08:30:20,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-09 08:30:20,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-09 08:30:20,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2021-11-09 08:30:20,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:20,751 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-09 08:30:20,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2021-11-09 08:30:20,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-09 08:30:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.263157894736842) internal successors, (24), 18 states have internal predecessors, (24), 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) [2021-11-09 08:30:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-11-09 08:30:20,771 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-09 08:30:20,771 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-11-09 08:30:20,771 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 08:30:20,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2021-11-09 08:30:20,772 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:20,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:20,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:20,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-09 08:30:20,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:20,773 INFO L791 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 160#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 171#L34-3 assume !(main_~i~1 < 5); 163#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 164#L20-3 [2021-11-09 08:30:20,773 INFO L793 eck$LassoCheckResult]: Loop: 164#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 177#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 164#L20-3 [2021-11-09 08:30:20,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-11-09 08:30:20,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:20,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422084468] [2021-11-09 08:30:20,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:20,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:20,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:20,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422084468] [2021-11-09 08:30:20,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422084468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:30:20,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:30:20,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:30:20,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023840509] [2021-11-09 08:30:20,843 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:20,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:20,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 1 times [2021-11-09 08:30:20,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:20,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858068385] [2021-11-09 08:30:20,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:20,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:20,857 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:20,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:20,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:20,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:30:20,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:30:20,931 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2021-11-09 08:30:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:20,944 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-09 08:30:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:30:20,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2021-11-09 08:30:20,955 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:20,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 24 transitions. [2021-11-09 08:30:20,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-09 08:30:20,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-09 08:30:20,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-11-09 08:30:20,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:20,956 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-11-09 08:30:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-11-09 08:30:20,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-11-09 08:30:20,957 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) [2021-11-09 08:30:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-09 08:30:20,958 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-09 08:30:20,958 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-09 08:30:20,958 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 08:30:20,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2021-11-09 08:30:20,958 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:20,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:20,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:20,959 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:30:20,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:20,959 INFO L791 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 207#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 216#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 219#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 220#L34-3 assume !(main_~i~1 < 5); 208#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 209#L20-3 [2021-11-09 08:30:20,959 INFO L793 eck$LassoCheckResult]: Loop: 209#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 222#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 209#L20-3 [2021-11-09 08:30:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-11-09 08:30:20,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:20,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169316986] [2021-11-09 08:30:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:20,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:20,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:20,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169316986] [2021-11-09 08:30:20,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169316986] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:20,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207388831] [2021-11-09 08:30:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:20,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:20,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:20,998 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:20,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-09 08:30:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:21,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:30:21,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:21,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:21,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207388831] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:21,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:21,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-09 08:30:21,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573502199] [2021-11-09 08:30:21,109 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:21,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 2 times [2021-11-09 08:30:21,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:21,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672338289] [2021-11-09 08:30:21,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:21,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,116 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,121 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:21,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:21,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:30:21,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:30:21,161 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:30:21,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:21,175 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-11-09 08:30:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:30:21,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2021-11-09 08:30:21,177 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:21,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 26 transitions. [2021-11-09 08:30:21,178 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-09 08:30:21,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-09 08:30:21,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 26 transitions. [2021-11-09 08:30:21,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:21,178 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-11-09 08:30:21,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 26 transitions. [2021-11-09 08:30:21,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-11-09 08:30:21,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 20 states have internal predecessors, (25), 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) [2021-11-09 08:30:21,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-11-09 08:30:21,181 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-09 08:30:21,181 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-09 08:30:21,181 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-09 08:30:21,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 25 transitions. [2021-11-09 08:30:21,182 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:21,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:21,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:21,183 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-11-09 08:30:21,183 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:21,184 INFO L791 eck$LassoCheckResult]: Stem: 270#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 271#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 280#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 287#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 288#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 283#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 284#L34-3 assume !(main_~i~1 < 5); 272#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 273#L20-3 [2021-11-09 08:30:21,184 INFO L793 eck$LassoCheckResult]: Loop: 273#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 286#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 273#L20-3 [2021-11-09 08:30:21,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-11-09 08:30:21,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:21,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347825536] [2021-11-09 08:30:21,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:21,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:21,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:21,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347825536] [2021-11-09 08:30:21,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347825536] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:21,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696756169] [2021-11-09 08:30:21,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:30:21,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:21,263 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:21,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-09 08:30:21,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:30:21,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:30:21,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:30:21,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:21,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:21,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696756169] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:21,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:21,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-09 08:30:21,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581298221] [2021-11-09 08:30:21,352 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:21,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 3 times [2021-11-09 08:30:21,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:21,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130686931] [2021-11-09 08:30:21,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:21,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,358 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:21,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-11-09 08:30:21,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:21,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:30:21,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:30:21,464 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. cyclomatic complexity: 9 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) [2021-11-09 08:30:21,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:21,485 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2021-11-09 08:30:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:30:21,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2021-11-09 08:30:21,487 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:21,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 28 transitions. [2021-11-09 08:30:21,487 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-09 08:30:21,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-09 08:30:21,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2021-11-09 08:30:21,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:21,488 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-11-09 08:30:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2021-11-09 08:30:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-11-09 08:30:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.173913043478261) internal successors, (27), 22 states have internal predecessors, (27), 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) [2021-11-09 08:30:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-09 08:30:21,491 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-09 08:30:21,491 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-09 08:30:21,491 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-09 08:30:21,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2021-11-09 08:30:21,492 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:21,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:21,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:21,492 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-11-09 08:30:21,492 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:21,493 INFO L791 eck$LassoCheckResult]: Stem: 345#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 346#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 355#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 362#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 363#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 358#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 359#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 365#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 364#L34-3 assume !(main_~i~1 < 5); 347#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 348#L20-3 [2021-11-09 08:30:21,493 INFO L793 eck$LassoCheckResult]: Loop: 348#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 361#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 348#L20-3 [2021-11-09 08:30:21,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:21,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-11-09 08:30:21,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:21,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394099570] [2021-11-09 08:30:21,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:21,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:21,543 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:21,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:21,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394099570] [2021-11-09 08:30:21,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394099570] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:21,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520327552] [2021-11-09 08:30:21,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:30:21,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:21,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:21,548 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:21,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-09 08:30:21,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-09 08:30:21,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:30:21,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:30:21,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:21,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520327552] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:21,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:21,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-09 08:30:21,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170761136] [2021-11-09 08:30:21,643 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:21,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:21,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 4 times [2021-11-09 08:30:21,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:21,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639516518] [2021-11-09 08:30:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:21,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,649 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:21,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:21,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:30:21,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:30:21,697 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2021-11-09 08:30:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:21,720 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2021-11-09 08:30:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:30:21,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2021-11-09 08:30:21,721 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:21,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 30 transitions. [2021-11-09 08:30:21,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-09 08:30:21,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-09 08:30:21,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 30 transitions. [2021-11-09 08:30:21,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:21,723 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-11-09 08:30:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 30 transitions. [2021-11-09 08:30:21,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-11-09 08:30:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.16) internal successors, (29), 24 states have internal predecessors, (29), 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) [2021-11-09 08:30:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-11-09 08:30:21,726 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-09 08:30:21,726 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-09 08:30:21,726 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-09 08:30:21,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2021-11-09 08:30:21,727 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:21,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:21,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:21,728 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-11-09 08:30:21,728 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:21,728 INFO L791 eck$LassoCheckResult]: Stem: 429#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 430#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 441#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 448#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 449#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 444#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 445#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 453#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 452#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 451#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 450#L34-3 assume !(main_~i~1 < 5); 433#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 434#L20-3 [2021-11-09 08:30:21,728 INFO L793 eck$LassoCheckResult]: Loop: 434#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 447#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 434#L20-3 [2021-11-09 08:30:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:21,729 INFO L85 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-11-09 08:30:21,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:21,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932187439] [2021-11-09 08:30:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:21,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:21,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:21,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932187439] [2021-11-09 08:30:21,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932187439] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:21,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929308425] [2021-11-09 08:30:21,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:30:21,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:21,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:21,788 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:21,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-09 08:30:21,855 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:30:21,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:30:21,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:30:21,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:21,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929308425] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:21,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:21,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-11-09 08:30:21,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52455687] [2021-11-09 08:30:21,910 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:21,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:21,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 5 times [2021-11-09 08:30:21,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:21,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387048706] [2021-11-09 08:30:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:21,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,916 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:21,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:21,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:30:21,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:30:21,968 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. cyclomatic complexity: 9 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-11-09 08:30:21,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:21,995 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2021-11-09 08:30:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:30:21,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2021-11-09 08:30:21,996 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:21,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 31 transitions. [2021-11-09 08:30:21,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-09 08:30:21,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-09 08:30:21,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2021-11-09 08:30:21,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:21,998 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-09 08:30:21,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2021-11-09 08:30:22,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-11-09 08:30:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 26 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) [2021-11-09 08:30:22,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-11-09 08:30:22,001 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-09 08:30:22,001 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-09 08:30:22,001 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-09 08:30:22,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 31 transitions. [2021-11-09 08:30:22,002 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2021-11-09 08:30:22,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:22,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:22,003 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-11-09 08:30:22,003 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:22,003 INFO L791 eck$LassoCheckResult]: Stem: 527#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 528#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 537#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 544#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 545#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 540#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 541#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 551#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 550#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 549#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 548#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 547#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 546#L34-3 assume !(main_~i~1 < 5); 529#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 530#L20-3 [2021-11-09 08:30:22,004 INFO L793 eck$LassoCheckResult]: Loop: 530#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 543#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 530#L20-3 [2021-11-09 08:30:22,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:22,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-11-09 08:30:22,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:22,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177185056] [2021-11-09 08:30:22,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:22,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:22,020 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:22,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:22,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1731, now seen corresponding path program 6 times [2021-11-09 08:30:22,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:22,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885555324] [2021-11-09 08:30:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:22,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:22,045 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:22,049 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:22,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:22,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1715425495, now seen corresponding path program 1 times [2021-11-09 08:30:22,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:22,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846104091] [2021-11-09 08:30:22,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:22,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:22,081 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:22,124 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:23,715 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 08:30:23,715 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 08:30:23,715 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 08:30:23,715 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 08:30:23,715 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 08:30:23,715 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:23,715 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 08:30:23,715 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 08:30:23,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration7_Lasso [2021-11-09 08:30:23,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 08:30:23,715 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 08:30:23,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:23,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:30:24,310 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 08:30:24,310 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 08:30:24,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,315 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-09 08:30:24,321 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 [2021-11-09 08:30:24,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,358 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-09 08:30:24,362 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 [2021-11-09 08:30:24,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,395 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-09 08:30:24,396 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 [2021-11-09 08:30:24,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,428 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-09 08:30:24,429 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 [2021-11-09 08:30:24,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,467 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-09 08:30:24,470 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 [2021-11-09 08:30:24,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:24,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:24,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,549 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,556 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 [2021-11-09 08:30:24,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-09 08:30:24,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,597 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-09 08:30:24,606 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 [2021-11-09 08:30:24,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,622 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,673 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,677 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 [2021-11-09 08:30:24,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-09 08:30:24,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-11-09 08:30:24,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,732 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-09 08:30:24,733 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 [2021-11-09 08:30:24,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-09 08:30:24,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,768 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-09 08:30:24,769 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 [2021-11-09 08:30:24,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-11-09 08:30:24,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,804 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-09 08:30:24,806 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 [2021-11-09 08:30:24,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-09 08:30:24,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,841 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-09 08:30:24,843 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 [2021-11-09 08:30:24,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:24,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:24,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-09 08:30:24,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,887 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-09 08:30:24,888 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 [2021-11-09 08:30:24,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:24,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:24,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:24,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,926 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-09 08:30:24,927 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 [2021-11-09 08:30:24,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:24,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-11-09 08:30:24,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:24,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:24,962 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:24,963 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 [2021-11-09 08:30:24,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-09 08:30:24,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:24,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:24,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:24,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:24,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:24,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:24,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:24,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:25,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:25,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:25,010 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:25,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-09 08:30:25,019 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 [2021-11-09 08:30:25,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:25,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:25,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:25,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:25,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:25,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:25,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:25,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:25,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:25,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:25,093 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:25,108 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 [2021-11-09 08:30:25,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:25,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:25,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:25,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:25,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:25,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:25,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-09 08:30:25,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:25,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:25,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:25,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:25,176 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:25,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-09 08:30:25,178 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 [2021-11-09 08:30:25,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:25,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 08:30:25,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:25,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:25,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:25,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 08:30:25,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 08:30:25,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:25,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:25,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:25,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:25,210 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:25,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-09 08:30:25,212 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 [2021-11-09 08:30:25,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:25,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:25,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:25,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:25,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:25,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:25,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 08:30:25,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-11-09 08:30:25,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:25,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:25,260 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:25,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-09 08:30:25,263 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 [2021-11-09 08:30:25,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 08:30:25,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 08:30:25,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 08:30:25,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 08:30:25,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 08:30:25,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 08:30:25,307 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 08:30:25,320 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-11-09 08:30:25,320 INFO L444 ModelExtractionUtils]: 5 out of 28 variables were initially zero. Simplification set additionally 20 variables to zero. [2021-11-09 08:30:25,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:30:25,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:25,336 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:30:25,337 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 08:30:25,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-09 08:30:25,366 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-09 08:30:25,366 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 08:30:25,366 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_avg_~i~0) = -2*ULTIMATE.start_avg_~i~0 + 9 Supporting invariants [] [2021-11-09 08:30:25,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:25,430 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-11-09 08:30:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:25,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 08:30:25,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:25,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:30:25,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:30:25,529 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 08:30:25,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-11-09 08:30:25,550 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 31 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 7 states. [2021-11-09 08:30:25,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-09 08:30:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-11-09 08:30:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-09 08:30:25,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 2 letters. [2021-11-09 08:30:25,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:30:25,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 16 letters. Loop has 2 letters. [2021-11-09 08:30:25,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:30:25,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 4 letters. [2021-11-09 08:30:25,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 08:30:25,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-11-09 08:30:25,560 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:25,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 28 states and 33 transitions. [2021-11-09 08:30:25,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-09 08:30:25,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-09 08:30:25,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2021-11-09 08:30:25,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:25,563 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-09 08:30:25,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2021-11-09 08:30:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-09 08:30:25,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 27 states have internal predecessors, (33), 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) [2021-11-09 08:30:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2021-11-09 08:30:25,568 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-09 08:30:25,568 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2021-11-09 08:30:25,568 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-09 08:30:25,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2021-11-09 08:30:25,569 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:25,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:25,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:25,571 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:30:25,571 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:25,571 INFO L791 eck$LassoCheckResult]: Stem: 699#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 700#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 711#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 719#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 720#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 714#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 715#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 726#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 725#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 724#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 723#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 722#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 721#L34-3 assume !(main_~i~1 < 5); 703#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 704#L20-3 assume !(avg_~i~0 < 5); 712#L20-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 713#L23 main_#t~ret7 := avg_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 709#L20-8 [2021-11-09 08:30:25,571 INFO L793 eck$LassoCheckResult]: Loop: 709#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 710#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 709#L20-8 [2021-11-09 08:30:25,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:25,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1638581027, now seen corresponding path program 1 times [2021-11-09 08:30:25,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:25,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060779311] [2021-11-09 08:30:25,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:25,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-09 08:30:25,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:25,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060779311] [2021-11-09 08:30:25,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060779311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:30:25,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:30:25,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:30:25,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745231559] [2021-11-09 08:30:25,612 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:25,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2243, now seen corresponding path program 1 times [2021-11-09 08:30:25,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:25,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706773087] [2021-11-09 08:30:25,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:25,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:25,643 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:25,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:25,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-09 08:30:25,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:25,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:30:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:30:25,689 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:30:25,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:25,723 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2021-11-09 08:30:25,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:30:25,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 37 transitions. [2021-11-09 08:30:25,724 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:25,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 37 transitions. [2021-11-09 08:30:25,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-11-09 08:30:25,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-11-09 08:30:25,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2021-11-09 08:30:25,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:25,728 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-11-09 08:30:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2021-11-09 08:30:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2021-11-09 08:30:25,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 28 states have internal predecessors, (33), 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) [2021-11-09 08:30:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-11-09 08:30:25,734 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-09 08:30:25,734 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-09 08:30:25,734 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-09 08:30:25,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 33 transitions. [2021-11-09 08:30:25,735 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:25,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:25,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:25,736 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:30:25,736 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:25,736 INFO L791 eck$LassoCheckResult]: Stem: 766#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 767#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 778#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 781#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 782#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 787#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 794#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 793#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 792#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 791#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 790#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 789#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 788#L34-3 assume !(main_~i~1 < 5); 770#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 771#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 784#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 785#L20-3 assume !(avg_~i~0 < 5); 779#L20-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 780#L23 main_#t~ret7 := avg_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 776#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 777#L20-7 [2021-11-09 08:30:25,736 INFO L793 eck$LassoCheckResult]: Loop: 777#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 786#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 777#L20-7 [2021-11-09 08:30:25,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:25,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1577614809, now seen corresponding path program 1 times [2021-11-09 08:30:25,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:25,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692539443] [2021-11-09 08:30:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:25,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-09 08:30:25,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:25,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692539443] [2021-11-09 08:30:25,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692539443] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:25,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37824898] [2021-11-09 08:30:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:25,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:25,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:25,822 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:25,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-09 08:30:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:25,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:30:25,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-09 08:30:25,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37824898] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:25,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:25,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-11-09 08:30:25,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211264696] [2021-11-09 08:30:25,977 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 2 times [2021-11-09 08:30:25,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:25,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292683372] [2021-11-09 08:30:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:25,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:25,993 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:26,004 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:26,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:26,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:30:26,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:30:26,061 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2021-11-09 08:30:26,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:26,107 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-11-09 08:30:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:30:26,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 43 transitions. [2021-11-09 08:30:26,111 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:26,113 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 43 transitions. [2021-11-09 08:30:26,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-11-09 08:30:26,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-09 08:30:26,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 43 transitions. [2021-11-09 08:30:26,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:26,116 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 43 transitions. [2021-11-09 08:30:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 43 transitions. [2021-11-09 08:30:26,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2021-11-09 08:30:26,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.121212121212121) internal successors, (37), 32 states have internal predecessors, (37), 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) [2021-11-09 08:30:26,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2021-11-09 08:30:26,124 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-11-09 08:30:26,124 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 37 transitions. [2021-11-09 08:30:26,124 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-09 08:30:26,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 37 transitions. [2021-11-09 08:30:26,125 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:26,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:26,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:26,127 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:30:26,127 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:26,127 INFO L791 eck$LassoCheckResult]: Stem: 899#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 900#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 911#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 914#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 915#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 922#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 931#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 930#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 929#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 928#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 927#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 926#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 925#L34-3 assume !(main_~i~1 < 5); 903#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 904#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 917#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 918#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 919#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 924#L20-3 assume !(avg_~i~0 < 5); 912#L20-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 913#L23 main_#t~ret7 := avg_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 920#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 921#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 909#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 910#L20-7 [2021-11-09 08:30:26,127 INFO L793 eck$LassoCheckResult]: Loop: 910#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 923#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 910#L20-7 [2021-11-09 08:30:26,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:26,128 INFO L85 PathProgramCache]: Analyzing trace with hash -483964569, now seen corresponding path program 1 times [2021-11-09 08:30:26,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:26,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072357487] [2021-11-09 08:30:26,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:26,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-09 08:30:26,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:26,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072357487] [2021-11-09 08:30:26,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072357487] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:26,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347929854] [2021-11-09 08:30:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:26,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:26,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:26,219 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:26,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-09 08:30:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:26,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:30:26,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:26,364 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-09 08:30:26,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347929854] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:26,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:26,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-09 08:30:26,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482465661] [2021-11-09 08:30:26,365 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:26,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:26,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 3 times [2021-11-09 08:30:26,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:26,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688783520] [2021-11-09 08:30:26,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:26,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:26,370 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:26,373 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:26,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:30:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:30:26,410 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. cyclomatic complexity: 9 Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-11-09 08:30:26,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:26,456 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2021-11-09 08:30:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:30:26,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 49 transitions. [2021-11-09 08:30:26,457 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:26,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 49 transitions. [2021-11-09 08:30:26,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-11-09 08:30:26,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-11-09 08:30:26,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 49 transitions. [2021-11-09 08:30:26,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:26,458 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-09 08:30:26,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 49 transitions. [2021-11-09 08:30:26,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2021-11-09 08:30:26,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 36 states have internal predecessors, (41), 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) [2021-11-09 08:30:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-11-09 08:30:26,461 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-09 08:30:26,461 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-11-09 08:30:26,461 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-09 08:30:26,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 41 transitions. [2021-11-09 08:30:26,462 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:26,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:26,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:26,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:30:26,463 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:26,464 INFO L791 eck$LassoCheckResult]: Stem: 1057#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1058#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1067#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1070#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1071#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1078#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1088#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1087#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1086#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1085#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1084#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1083#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1082#L34-3 assume !(main_~i~1 < 5); 1059#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1060#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1073#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1076#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1089#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1074#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1075#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1081#L20-3 assume !(avg_~i~0 < 5); 1068#L20-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1069#L23 main_#t~ret7 := avg_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1065#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1066#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1077#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1091#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1090#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1080#L20-7 [2021-11-09 08:30:26,464 INFO L793 eck$LassoCheckResult]: Loop: 1080#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1079#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1080#L20-7 [2021-11-09 08:30:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1757450151, now seen corresponding path program 2 times [2021-11-09 08:30:26,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:26,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207890899] [2021-11-09 08:30:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:26,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:26,509 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-09 08:30:26,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:26,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207890899] [2021-11-09 08:30:26,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207890899] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:26,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264465287] [2021-11-09 08:30:26,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:30:26,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:26,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:26,512 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:26,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-09 08:30:26,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:30:26,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:30:26,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:30:26,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-09 08:30:26,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264465287] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:26,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:26,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-11-09 08:30:26,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594172764] [2021-11-09 08:30:26,700 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:26,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 4 times [2021-11-09 08:30:26,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:26,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647248709] [2021-11-09 08:30:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:26,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:26,705 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:26,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:26,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:26,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:30:26,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:30:26,756 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-11-09 08:30:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:26,917 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2021-11-09 08:30:26,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:30:26,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 55 transitions. [2021-11-09 08:30:26,918 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:26,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 55 transitions. [2021-11-09 08:30:26,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-11-09 08:30:26,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-11-09 08:30:26,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 55 transitions. [2021-11-09 08:30:26,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:26,920 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 55 transitions. [2021-11-09 08:30:26,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 55 transitions. [2021-11-09 08:30:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2021-11-09 08:30:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 40 states have internal predecessors, (45), 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) [2021-11-09 08:30:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-11-09 08:30:26,922 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-11-09 08:30:26,922 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-11-09 08:30:26,922 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-09 08:30:26,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 45 transitions. [2021-11-09 08:30:26,923 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:26,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:26,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:26,925 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:30:26,925 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:26,925 INFO L791 eck$LassoCheckResult]: Stem: 1234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1235#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1246#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1249#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1250#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1257#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1268#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1267#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1266#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1265#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1264#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1263#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1262#L34-3 assume !(main_~i~1 < 5); 1238#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1239#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1252#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1253#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1254#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1274#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1273#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1272#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1261#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1260#L20-3 assume !(avg_~i~0 < 5); 1247#L20-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1248#L23 main_#t~ret7 := avg_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1255#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1256#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1244#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1245#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1271#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1270#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1269#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1259#L20-7 [2021-11-09 08:30:26,925 INFO L793 eck$LassoCheckResult]: Loop: 1259#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1258#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1259#L20-7 [2021-11-09 08:30:26,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:26,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1218450663, now seen corresponding path program 3 times [2021-11-09 08:30:26,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:26,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653920104] [2021-11-09 08:30:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:26,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-09 08:30:26,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:26,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653920104] [2021-11-09 08:30:26,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653920104] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:26,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47796698] [2021-11-09 08:30:26,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:30:26,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:26,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:26,991 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:27,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-09 08:30:27,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-09 08:30:27,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:30:27,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:30:27,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-09 08:30:27,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47796698] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:27,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:30:27,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-11-09 08:30:27,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955055932] [2021-11-09 08:30:27,216 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-09 08:30:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:27,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 5 times [2021-11-09 08:30:27,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:27,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251020518] [2021-11-09 08:30:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:27,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:27,223 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:27,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:27,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:27,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:30:27,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:30:27,273 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. cyclomatic complexity: 9 Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-11-09 08:30:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:27,350 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2021-11-09 08:30:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:30:27,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 58 transitions. [2021-11-09 08:30:27,352 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:27,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 58 transitions. [2021-11-09 08:30:27,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-11-09 08:30:27,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-11-09 08:30:27,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 58 transitions. [2021-11-09 08:30:27,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:27,354 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-11-09 08:30:27,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 58 transitions. [2021-11-09 08:30:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2021-11-09 08:30:27,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 44 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) [2021-11-09 08:30:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2021-11-09 08:30:27,357 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-09 08:30:27,357 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 49 transitions. [2021-11-09 08:30:27,357 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-09 08:30:27,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 49 transitions. [2021-11-09 08:30:27,358 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2021-11-09 08:30:27,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:27,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:27,360 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:30:27,360 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:27,360 INFO L791 eck$LassoCheckResult]: Stem: 1435#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1436#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1445#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1455#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1456#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1448#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1449#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1477#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1476#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1475#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1474#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1473#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1472#L34-3 assume !(main_~i~1 < 5); 1437#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1438#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1451#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1452#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1453#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1471#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1470#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1469#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1468#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1467#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1464#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1463#L20-3 assume !(avg_~i~0 < 5); 1446#L20-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1447#L23 main_#t~ret7 := avg_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1443#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1444#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1454#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1466#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1465#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1462#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1461#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1460#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1459#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1458#L20-7 [2021-11-09 08:30:27,360 INFO L793 eck$LassoCheckResult]: Loop: 1458#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1457#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1458#L20-7 [2021-11-09 08:30:27,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:27,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2144167641, now seen corresponding path program 4 times [2021-11-09 08:30:27,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:27,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777414160] [2021-11-09 08:30:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:27,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:27,419 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:27,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:27,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2303, now seen corresponding path program 6 times [2021-11-09 08:30:27,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:27,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815873354] [2021-11-09 08:30:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:27,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:27,477 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:27,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:27,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1039200421, now seen corresponding path program 5 times [2021-11-09 08:30:27,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:27,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100730892] [2021-11-09 08:30:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:27,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:30:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-09 08:30:27,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:30:27,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100730892] [2021-11-09 08:30:27,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100730892] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:30:27,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160964948] [2021-11-09 08:30:27,553 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:30:27,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:30:27,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:30:27,559 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:30:27,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24fe0dca-3f61-403a-a9b6-7464a852ace7/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-09 08:30:27,731 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-09 08:30:27,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:30:27,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:30:27,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:30:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-09 08:30:27,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160964948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:30:27,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 08:30:27,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-09 08:30:27,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555291931] [2021-11-09 08:30:27,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:30:27,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:30:27,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:30:27,878 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. cyclomatic complexity: 9 Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-11-09 08:30:27,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:30:27,972 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-11-09 08:30:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:30:27,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 55 transitions. [2021-11-09 08:30:27,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 08:30:27,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 42 states and 43 transitions. [2021-11-09 08:30:27,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-11-09 08:30:27,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-11-09 08:30:27,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 43 transitions. [2021-11-09 08:30:27,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:30:27,975 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-11-09 08:30:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 43 transitions. [2021-11-09 08:30:27,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-11-09 08:30:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 41 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) [2021-11-09 08:30:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2021-11-09 08:30:27,978 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-11-09 08:30:27,978 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 43 transitions. [2021-11-09 08:30:27,978 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-11-09 08:30:27,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 43 transitions. [2021-11-09 08:30:27,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-09 08:30:27,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:30:27,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:30:27,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:30:27,980 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-09 08:30:27,980 INFO L791 eck$LassoCheckResult]: Stem: 1657#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 1658#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~post5, main_~i~1, main_#t~ret7, main_#t~mem8, main_#t~mem9, main_#t~ret10, main_#t~mem11, main_#t~mem13, main_#t~post12, main_~i~2, main_#t~ret14, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1667#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1675#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1676#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1670#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1671#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1698#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1697#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1696#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1695#L34-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet6, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet6; 1694#L34-2 main_#t~post5 := main_~i~1;main_~i~1 := 1 + main_#t~post5;havoc main_#t~post5; 1693#L34-3 assume !(main_~i~1 < 5); 1661#L34-4 avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1662#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1672#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1673#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1692#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1691#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1690#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1689#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1687#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1685#L20-3 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1683#L20-2 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1681#L20-3 assume !(avg_~i~0 < 5); 1668#L20-4 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1669#L23 main_#t~ret7 := avg_#res;main_~ret~1 := main_#t~ret7;havoc main_#t~ret7;call main_#t~mem8 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem8;havoc main_#t~mem8;call main_#t~mem9 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem9, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem9;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);avg_#in~x.base, avg_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc avg_#res;havoc avg_#t~mem4, avg_#t~post3, avg_~x.base, avg_~x.offset, avg_~i~0, avg_~ret~0;avg_~x.base, avg_~x.offset := avg_#in~x.base, avg_#in~x.offset;havoc avg_~i~0;havoc avg_~ret~0;avg_~ret~0 := 0;avg_~i~0 := 0; 1665#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1666#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1674#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1688#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1686#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1684#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1682#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1680#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1679#L20-8 assume !!(avg_~i~0 < 5);call avg_#t~mem4 := read~int(avg_~x.base, avg_~x.offset + 4 * avg_~i~0, 4);avg_~ret~0 := avg_~ret~0 + avg_#t~mem4;havoc avg_#t~mem4; 1678#L20-7 avg_#t~post3 := avg_~i~0;avg_~i~0 := 1 + avg_#t~post3;havoc avg_#t~post3; 1677#L20-8 assume !(avg_~i~0 < 5); 1659#L20-9 avg_#res := (if (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 <= 2147483647 then (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 else (if avg_~ret~0 < 0 && 0 != avg_~ret~0 % 5 then 1 + avg_~ret~0 / 5 else avg_~ret~0 / 5) % 4294967296 - 4294967296); 1660#L23-1 main_#t~ret10 := avg_#res;main_~ret2~0 := main_#t~ret10;havoc main_#t~ret10;call main_#t~mem11 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~2 := 0; 1664#L43-3 [2021-11-09 08:30:27,980 INFO L793 eck$LassoCheckResult]: Loop: 1664#L43-3 assume !!(main_~i~2 < 4);call main_#t~mem13 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem13, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem13; 1663#L43-2 main_#t~post12 := main_~i~2;main_~i~2 := 1 + main_#t~post12;havoc main_#t~post12; 1664#L43-3 [2021-11-09 08:30:27,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2055775835, now seen corresponding path program 1 times [2021-11-09 08:30:27,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:27,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646831918] [2021-11-09 08:30:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:27,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:28,033 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:28,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:28,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:28,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2755, now seen corresponding path program 1 times [2021-11-09 08:30:28,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:28,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502803586] [2021-11-09 08:30:28,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:28,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:28,085 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:28,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:30:28,089 INFO L85 PathProgramCache]: Analyzing trace with hash 84380519, now seen corresponding path program 1 times [2021-11-09 08:30:28,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:30:28,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071132733] [2021-11-09 08:30:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:30:28,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:30:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:28,125 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:30:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:30:28,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:30:34,993 WARN L207 SmtUtils]: Spent 6.69 s on a formula simplification. DAG size of input: 399 DAG size of output: 292 [2021-11-09 08:31:18,211 WARN L207 SmtUtils]: Spent 6.22 s on a formula simplification that was a NOOP. DAG size: 49 [2021-11-09 08:31:53,240 WARN L207 SmtUtils]: Spent 12.16 s on a formula simplification that was a NOOP. DAG size: 46 [2021-11-09 08:33:01,980 WARN L207 SmtUtils]: Spent 12.13 s on a formula simplification that was a NOOP. DAG size: 46 [2021-11-09 08:34:30,973 WARN L207 SmtUtils]: Spent 26.13 s on a formula simplification that was a NOOP. DAG size: 221 [2021-11-09 08:34:30,976 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 08:34:30,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 08:34:30,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 08:34:30,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 08:34:30,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 08:34:30,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:34:30,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 08:34:30,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 08:34:30,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: avg05-1.i_Iteration14_Lasso [2021-11-09 08:34:30,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 08:34:30,977 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 08:34:31,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:31,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 08:34:35,127 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 77