./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test27-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test27-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be --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 8b17e864f5b8145df67cb2b3dc045f82af33b1bd3c9c5e4c95275bcb385f71da .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:59:06,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:59:06,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:59:06,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:59:06,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:59:06,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:59:06,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:59:06,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:59:06,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:59:06,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:59:06,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:59:06,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:59:06,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:59:06,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:59:06,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:59:06,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:59:06,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:59:06,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:59:06,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:59:06,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:59:06,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:59:06,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:59:06,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:59:06,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:59:06,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:59:06,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:59:06,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:59:06,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:59:06,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:59:06,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:59:06,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:59:06,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:59:06,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:59:06,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:59:06,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:59:06,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:59:06,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:59:06,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:59:06,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:59:06,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:59:06,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:59:06,533 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:59:06,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:59:06,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:59:06,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:59:06,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:59:06,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:59:06,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:59:06,608 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:59:06,609 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:59:06,609 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:59:06,609 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:59:06,611 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:59:06,611 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:59:06,611 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:59:06,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:59:06,612 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:59:06,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:59:06,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:59:06,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:59:06,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:59:06,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:59:06,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:59:06,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:59:06,614 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:59:06,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:59:06,615 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:59:06,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:59:06,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:59:06,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:59:06,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:59:06,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:59:06,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:59:06,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:59:06,620 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:59:06,621 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_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b17e864f5b8145df67cb2b3dc045f82af33b1bd3c9c5e4c95275bcb385f71da [2021-10-21 19:59:07,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:59:07,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:59:07,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:59:07,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:59:07,070 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:59:07,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/ldv-regression/test27-2.c [2021-10-21 19:59:07,157 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/data/e3c61ff59/a56e9f9a60d04aeebfb025ece4911ee4/FLAG4887cd3d1 [2021-10-21 19:59:07,821 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:59:07,826 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/sv-benchmarks/c/ldv-regression/test27-2.c [2021-10-21 19:59:07,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/data/e3c61ff59/a56e9f9a60d04aeebfb025ece4911ee4/FLAG4887cd3d1 [2021-10-21 19:59:08,159 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/data/e3c61ff59/a56e9f9a60d04aeebfb025ece4911ee4 [2021-10-21 19:59:08,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:59:08,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:59:08,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:59:08,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:59:08,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:59:08,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4d0736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08, skipping insertion in model container [2021-10-21 19:59:08,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:59:08,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:59:08,426 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_ca2a191e-f4ef-4345-809e-bcbad8b903a9/sv-benchmarks/c/ldv-regression/test27-2.c[1224,1237] [2021-10-21 19:59:08,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:59:08,437 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:59:08,462 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_ca2a191e-f4ef-4345-809e-bcbad8b903a9/sv-benchmarks/c/ldv-regression/test27-2.c[1224,1237] [2021-10-21 19:59:08,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:59:08,490 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:59:08,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08 WrapperNode [2021-10-21 19:59:08,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:59:08,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:59:08,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:59:08,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:59:08,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:59:08,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:59:08,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:59:08,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:59:08,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:59:08,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:59:08,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:59:08,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:59:08,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (1/1) ... [2021-10-21 19:59:08,664 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:08,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:08,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:08,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:59:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-21 19:59:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:59:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-21 19:59:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:59:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:59:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:59:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:59:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:59:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:59:09,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:59:09,142 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-21 19:59:09,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:59:09 BoogieIcfgContainer [2021-10-21 19:59:09,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:59:09,145 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:59:09,145 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:59:09,163 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:59:09,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:59:09,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:59:08" (1/3) ... [2021-10-21 19:59:09,173 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31cc4e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:59:09, skipping insertion in model container [2021-10-21 19:59:09,173 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:59:09,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:59:08" (2/3) ... [2021-10-21 19:59:09,174 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31cc4e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:59:09, skipping insertion in model container [2021-10-21 19:59:09,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:59:09,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:59:09" (3/3) ... [2021-10-21 19:59:09,176 INFO L389 chiAutomizerObserver]: Analyzing ICFG test27-2.c [2021-10-21 19:59:09,261 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:59:09,262 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:59:09,262 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:59:09,262 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:59:09,262 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:59:09,263 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:59:09,263 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:59:09,263 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:59:09,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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) [2021-10-21 19:59:09,313 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 19:59:09,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:09,314 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:09,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:59:09,322 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:09,322 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:59:09,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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) [2021-10-21 19:59:09,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-21 19:59:09,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:09,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:09,328 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:59:09,328 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:09,336 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 10#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 15#L29-3true [2021-10-21 19:59:09,337 INFO L793 eck$LassoCheckResult]: Loop: 15#L29-3true assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 17#L29-2true main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 15#L29-3true [2021-10-21 19:59:09,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:09,346 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 19:59:09,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:09,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881419064] [2021-10-21 19:59:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:09,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:09,538 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:09,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:09,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-21 19:59:09,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:09,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190631576] [2021-10-21 19:59:09,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:09,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:09,679 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:09,703 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:09,717 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-21 19:59:09,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:09,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567745859] [2021-10-21 19:59:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:09,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:09,801 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:09,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:11,659 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:59:11,660 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:59:11,660 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:59:11,660 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:59:11,661 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:59:11,661 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:11,661 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:59:11,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:59:11,661 INFO L133 ssoRankerPreferences]: Filename of dumped script: test27-2.c_Iteration1_Lasso [2021-10-21 19:59:11,661 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:59:11,662 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:59:11,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:11,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:59:12,911 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:59:12,919 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:59:12,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:12,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:12,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:12,936 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 [2021-10-21 19:59:12,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:12,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:12,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:12,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:12,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:12,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:12,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:59:12,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-21 19:59:13,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:59:13,037 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 [2021-10-21 19:59:13,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:13,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:13,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:13,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:59:13,094 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 [2021-10-21 19:59:13,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:13,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:13,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:13,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-21 19:59:13,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,180 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 [2021-10-21 19:59:13,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:13,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:13,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:13,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:59:13,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,259 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,267 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 [2021-10-21 19:59:13,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:13,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:13,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:13,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:59:13,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-21 19:59:13,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,324 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:59:13,328 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 [2021-10-21 19:59:13,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:59:13,398 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 [2021-10-21 19:59:13,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:13,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:13,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:13,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-21 19:59:13,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,439 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:59:13,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:59:13,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-21 19:59:13,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,506 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:59:13,509 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 [2021-10-21 19:59:13,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:13,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:13,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:13,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:59:13,563 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 [2021-10-21 19:59:13,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,617 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:59:13,622 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 [2021-10-21 19:59:13,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:13,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:13,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:13,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,697 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:59:13,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:59:13,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,710 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,710 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,750 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:59:13,752 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 [2021-10-21 19:59:13,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,803 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:59:13,810 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 [2021-10-21 19:59:13,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,851 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:59:13,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:59:13,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,903 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:13,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:59:13,905 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 [2021-10-21 19:59:13,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:13,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:13,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:13,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:13,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:13,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:13,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:13,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:13,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:13,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:13,994 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:59:14,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:59:14,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,083 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,089 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 [2021-10-21 19:59:14,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,104 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:59:14,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,170 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:59:14,179 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 [2021-10-21 19:59:14,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,223 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:59:14,228 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 [2021-10-21 19:59:14,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:14,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:14,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:14,241 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,266 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:59:14,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:59:14,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,279 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,329 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:59:14,332 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 [2021-10-21 19:59:14,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:14,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:14,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:14,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-21 19:59:14,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,369 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:59:14,372 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 [2021-10-21 19:59:14,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-21 19:59:14,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,420 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:59:14,422 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 [2021-10-21 19:59:14,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:14,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:14,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:14,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-21 19:59:14,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,458 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:59:14,460 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 [2021-10-21 19:59:14,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,542 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:59:14,550 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 [2021-10-21 19:59:14,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,564 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-21 19:59:14,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,610 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:59:14,612 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 [2021-10-21 19:59:14,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:14,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:14,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:14,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,695 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:59:14,703 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 [2021-10-21 19:59:14,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,772 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:59:14,774 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 [2021-10-21 19:59:14,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,861 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:59:14,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:59:14,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:59:14,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:59:14,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:59:14,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,898 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:59:14,900 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 [2021-10-21 19:59:14,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,909 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,909 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:59:14,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:14,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:14,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:14,966 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:14,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:59:14,971 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 [2021-10-21 19:59:14,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:59:14,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:59:14,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:59:14,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:59:14,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:59:14,983 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:59:14,993 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:59:15,081 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2021-10-21 19:59:15,081 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-10-21 19:59:15,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:59:15,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:15,085 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:59:15,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:59:15,131 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:59:15,160 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:59:15,160 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:59:15,161 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1) = -8*ULTIMATE.start_main_~j~0 + 19*v_rep(select #length ULTIMATE.start_main_~#a~0.base)_1 Supporting invariants [] [2021-10-21 19:59:15,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-21 19:59:15,412 INFO L297 tatePredicateManager]: 30 out of 30 supporting invariants were superfluous and have been removed [2021-10-21 19:59:15,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:15,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:59:15,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:15,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:59:15,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:15,590 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 [2021-10-21 19:59:15,593 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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) 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) [2021-10-21 19:59:15,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 19:59:15,733 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 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). 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 39 states and 56 transitions. Complement of second has 8 states. [2021-10-21 19:59:15,734 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 [2021-10-21 19:59:15,736 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) [2021-10-21 19:59:15,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2021-10-21 19:59:15,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 19:59:15,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:59:15,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 19:59:15,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:59:15,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 19:59:15,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:59:15,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 56 transitions. [2021-10-21 19:59:15,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:15,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 9 states and 11 transitions. [2021-10-21 19:59:15,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 19:59:15,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:15,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-10-21 19:59:15,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:15,759 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-21 19:59:15,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-10-21 19:59:15,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-21 19:59:15,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 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) [2021-10-21 19:59:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-10-21 19:59:15,791 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-21 19:59:15,791 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-21 19:59:15,791 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:59:15,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2021-10-21 19:59:15,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:15,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:15,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:15,793 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-21 19:59:15,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:15,795 INFO L791 eck$LassoCheckResult]: Stem: 215#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 216#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 217#L29-3 assume !(main_~j~0 < 10); 218#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 221#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 222#L44-3 [2021-10-21 19:59:15,796 INFO L793 eck$LassoCheckResult]: Loop: 222#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 223#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 222#L44-3 [2021-10-21 19:59:15,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:15,796 INFO L82 PathProgramCache]: Analyzing trace with hash 28697000, now seen corresponding path program 1 times [2021-10-21 19:59:15,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:15,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98976879] [2021-10-21 19:59:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:15,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:15,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:15,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98976879] [2021-10-21 19:59:15,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98976879] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:59:15,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:59:15,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:59:15,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854301097] [2021-10-21 19:59:15,903 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:15,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:15,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 1 times [2021-10-21 19:59:15,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:15,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394438854] [2021-10-21 19:59:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:15,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:15,913 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:15,923 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:15,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:15,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:59:15,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:59:15,971 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:15,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:15,990 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2021-10-21 19:59:15,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:59:15,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-10-21 19:59:15,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:15,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 11 transitions. [2021-10-21 19:59:15,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:15,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:15,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2021-10-21 19:59:15,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:15,996 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-10-21 19:59:15,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2021-10-21 19:59:15,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-10-21 19:59:15,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-10-21 19:59:16,001 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-21 19:59:16,002 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-10-21 19:59:16,002 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:59:16,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-10-21 19:59:16,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:16,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:16,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:16,003 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:59:16,003 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:16,004 INFO L791 eck$LassoCheckResult]: Stem: 240#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 241#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 242#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 243#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 244#L29-3 assume !(main_~j~0 < 10); 245#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 246#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 247#L44-3 [2021-10-21 19:59:16,004 INFO L793 eck$LassoCheckResult]: Loop: 247#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 248#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 247#L44-3 [2021-10-21 19:59:16,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:16,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1809669606, now seen corresponding path program 1 times [2021-10-21 19:59:16,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:16,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165675805] [2021-10-21 19:59:16,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:16,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:16,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:16,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165675805] [2021-10-21 19:59:16,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165675805] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:16,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010673451] [2021-10-21 19:59:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:16,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:16,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:16,077 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:16,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-21 19:59:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:16,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:59:16,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:16,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010673451] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:16,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:16,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:59:16,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088941833] [2021-10-21 19:59:16,201 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:16,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:16,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 2 times [2021-10-21 19:59:16,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:16,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539412753] [2021-10-21 19:59:16,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:16,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:16,221 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:16,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:16,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:59:16,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:59:16,281 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:16,312 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-10-21 19:59:16,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:59:16,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2021-10-21 19:59:16,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:16,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 13 transitions. [2021-10-21 19:59:16,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:16,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:16,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-10-21 19:59:16,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:16,316 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-10-21 19:59:16,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-10-21 19:59:16,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-21 19:59:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:16,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-10-21 19:59:16,320 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-21 19:59:16,320 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-10-21 19:59:16,320 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:59:16,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2021-10-21 19:59:16,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:16,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:16,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:16,325 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-21 19:59:16,325 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:16,325 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 288#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 289#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 290#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 291#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 292#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 297#L29-3 assume !(main_~j~0 < 10); 293#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 294#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 295#L44-3 [2021-10-21 19:59:16,325 INFO L793 eck$LassoCheckResult]: Loop: 295#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 296#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 295#L44-3 [2021-10-21 19:59:16,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:16,326 INFO L82 PathProgramCache]: Analyzing trace with hash -367607132, now seen corresponding path program 2 times [2021-10-21 19:59:16,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:16,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38037064] [2021-10-21 19:59:16,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:16,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:16,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:16,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38037064] [2021-10-21 19:59:16,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38037064] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:16,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691172424] [2021-10-21 19:59:16,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:59:16,461 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:16,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:16,463 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:16,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-21 19:59:16,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:59:16,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:59:16,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:59:16,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:16,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:16,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691172424] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:16,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:16,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 19:59:16,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358078819] [2021-10-21 19:59:16,626 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:16,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:16,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 3 times [2021-10-21 19:59:16,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:16,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235329188] [2021-10-21 19:59:16,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:16,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:16,632 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:16,638 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:16,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:16,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:59:16,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:59:16,678 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:16,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:16,707 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-10-21 19:59:16,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:59:16,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2021-10-21 19:59:16,709 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:16,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 15 transitions. [2021-10-21 19:59:16,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:16,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:16,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2021-10-21 19:59:16,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:16,711 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-21 19:59:16,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2021-10-21 19:59:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2021-10-21 19:59:16,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-10-21 19:59:16,714 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-21 19:59:16,714 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-10-21 19:59:16,714 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:59:16,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2021-10-21 19:59:16,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:16,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:16,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:16,715 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1] [2021-10-21 19:59:16,716 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:16,716 INFO L791 eck$LassoCheckResult]: Stem: 345#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 346#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 347#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 348#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 355#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 357#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 349#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 350#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 356#L29-3 assume !(main_~j~0 < 10); 351#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 352#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 353#L44-3 [2021-10-21 19:59:16,716 INFO L793 eck$LassoCheckResult]: Loop: 353#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 354#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 353#L44-3 [2021-10-21 19:59:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:16,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1081479198, now seen corresponding path program 3 times [2021-10-21 19:59:16,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:16,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864120137] [2021-10-21 19:59:16,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:16,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:16,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:16,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864120137] [2021-10-21 19:59:16,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864120137] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:16,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379967676] [2021-10-21 19:59:16,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:59:16,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:16,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:16,856 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:16,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-21 19:59:17,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 19:59:17,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:59:17,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:59:17,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:17,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379967676] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:17,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:17,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-21 19:59:17,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814244321] [2021-10-21 19:59:17,264 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:17,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:17,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 4 times [2021-10-21 19:59:17,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:17,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472838497] [2021-10-21 19:59:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:17,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:17,270 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:17,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:17,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:17,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:59:17,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:59:17,323 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:17,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:17,367 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-21 19:59:17,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:59:17,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 17 transitions. [2021-10-21 19:59:17,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:17,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 17 transitions. [2021-10-21 19:59:17,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:17,371 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:17,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 17 transitions. [2021-10-21 19:59:17,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:17,372 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-21 19:59:17,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 17 transitions. [2021-10-21 19:59:17,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-10-21 19:59:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:17,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-21 19:59:17,376 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-21 19:59:17,376 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-21 19:59:17,376 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:59:17,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-10-21 19:59:17,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:17,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:17,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:17,378 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1] [2021-10-21 19:59:17,379 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:17,379 INFO L791 eck$LassoCheckResult]: Stem: 414#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 415#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 416#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 417#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 418#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 419#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 424#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 428#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 427#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 426#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 425#L29-3 assume !(main_~j~0 < 10); 420#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 421#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 422#L44-3 [2021-10-21 19:59:17,379 INFO L793 eck$LassoCheckResult]: Loop: 422#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 423#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 422#L44-3 [2021-10-21 19:59:17,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:17,380 INFO L82 PathProgramCache]: Analyzing trace with hash 82232736, now seen corresponding path program 4 times [2021-10-21 19:59:17,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:17,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398340808] [2021-10-21 19:59:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:17,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:17,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:17,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:17,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398340808] [2021-10-21 19:59:17,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398340808] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:17,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703515590] [2021-10-21 19:59:17,486 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:59:17,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:17,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:17,488 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:17,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-21 19:59:17,876 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:59:17,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:59:17,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:59:17,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:17,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703515590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:17,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:17,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-21 19:59:17,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262498705] [2021-10-21 19:59:17,958 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:17,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:17,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 5 times [2021-10-21 19:59:17,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:17,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852017786] [2021-10-21 19:59:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:17,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:17,963 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:17,968 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:18,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:18,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:59:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:59:18,009 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:18,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:18,055 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-10-21 19:59:18,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:59:18,056 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 19 transitions. [2021-10-21 19:59:18,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:18,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 19 transitions. [2021-10-21 19:59:18,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:18,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:18,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 19 transitions. [2021-10-21 19:59:18,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:18,058 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-10-21 19:59:18,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 19 transitions. [2021-10-21 19:59:18,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-10-21 19:59:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 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) [2021-10-21 19:59:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-21 19:59:18,061 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-21 19:59:18,061 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-21 19:59:18,061 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:59:18,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2021-10-21 19:59:18,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:18,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:18,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:18,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1] [2021-10-21 19:59:18,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:18,063 INFO L791 eck$LassoCheckResult]: Stem: 498#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 499#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 494#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 495#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 496#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 497#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 504#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 510#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 509#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 508#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 507#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 506#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 505#L29-3 assume !(main_~j~0 < 10); 500#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 501#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 502#L44-3 [2021-10-21 19:59:18,063 INFO L793 eck$LassoCheckResult]: Loop: 502#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 503#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 502#L44-3 [2021-10-21 19:59:18,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:18,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1717904350, now seen corresponding path program 5 times [2021-10-21 19:59:18,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:18,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50742774] [2021-10-21 19:59:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:18,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:18,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:18,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50742774] [2021-10-21 19:59:18,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50742774] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:18,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134358903] [2021-10-21 19:59:18,160 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:59:18,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:18,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:18,163 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:18,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-21 19:59:18,427 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-21 19:59:18,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:59:18,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:59:18,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:18,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134358903] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:18,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:18,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-21 19:59:18,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867345541] [2021-10-21 19:59:18,507 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:18,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:18,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 6 times [2021-10-21 19:59:18,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:18,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848269048] [2021-10-21 19:59:18,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:18,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:18,517 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:18,532 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:18,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:18,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:59:18,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:59:18,578 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. cyclomatic complexity: 3 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-10-21 19:59:18,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:18,621 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-10-21 19:59:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:59:18,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 21 transitions. [2021-10-21 19:59:18,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:18,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 21 transitions. [2021-10-21 19:59:18,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:18,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:18,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 21 transitions. [2021-10-21 19:59:18,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:18,629 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-10-21 19:59:18,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 21 transitions. [2021-10-21 19:59:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-10-21 19:59:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 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) [2021-10-21 19:59:18,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-21 19:59:18,633 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-21 19:59:18,633 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-21 19:59:18,633 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:59:18,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 20 transitions. [2021-10-21 19:59:18,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:18,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:18,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:18,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1, 1] [2021-10-21 19:59:18,637 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:18,638 INFO L791 eck$LassoCheckResult]: Stem: 589#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 590#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 585#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 586#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 587#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 588#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 595#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 603#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 602#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 601#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 600#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 599#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 598#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 597#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 596#L29-3 assume !(main_~j~0 < 10); 591#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 592#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 593#L44-3 [2021-10-21 19:59:18,638 INFO L793 eck$LassoCheckResult]: Loop: 593#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 594#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 593#L44-3 [2021-10-21 19:59:18,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:18,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1640295068, now seen corresponding path program 6 times [2021-10-21 19:59:18,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:18,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022607437] [2021-10-21 19:59:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:18,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:18,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:18,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022607437] [2021-10-21 19:59:18,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022607437] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:18,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313978540] [2021-10-21 19:59:18,778 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-21 19:59:18,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:18,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:18,781 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:18,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-21 19:59:19,702 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-21 19:59:19,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:59:19,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:59:19,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:19,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313978540] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:19,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:19,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-21 19:59:19,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554087358] [2021-10-21 19:59:19,772 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:19,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 7 times [2021-10-21 19:59:19,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:19,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343154589] [2021-10-21 19:59:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:19,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:19,776 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:19,779 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:19,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:19,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:59:19,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:59:19,817 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. cyclomatic complexity: 3 Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 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) [2021-10-21 19:59:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:19,860 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-10-21 19:59:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:59:19,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 23 transitions. [2021-10-21 19:59:19,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:19,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 23 transitions. [2021-10-21 19:59:19,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:19,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:19,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 23 transitions. [2021-10-21 19:59:19,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:19,864 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-21 19:59:19,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 23 transitions. [2021-10-21 19:59:19,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-21 19:59:19,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 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) [2021-10-21 19:59:19,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-21 19:59:19,866 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 19:59:19,866 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 19:59:19,866 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:59:19,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2021-10-21 19:59:19,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:19,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:19,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:19,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 1, 1, 1, 1, 1] [2021-10-21 19:59:19,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:19,868 INFO L791 eck$LassoCheckResult]: Stem: 691#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 692#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 687#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 688#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 689#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 690#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 697#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 707#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 706#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 705#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 704#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 703#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 702#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 701#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 700#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 699#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 698#L29-3 assume !(main_~j~0 < 10); 693#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 694#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 695#L44-3 [2021-10-21 19:59:19,869 INFO L793 eck$LassoCheckResult]: Loop: 695#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 696#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 695#L44-3 [2021-10-21 19:59:19,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:19,869 INFO L82 PathProgramCache]: Analyzing trace with hash 72219098, now seen corresponding path program 7 times [2021-10-21 19:59:19,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:19,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771113995] [2021-10-21 19:59:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:19,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:19,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:19,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771113995] [2021-10-21 19:59:19,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771113995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:19,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227902762] [2021-10-21 19:59:19,967 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-21 19:59:19,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:19,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:19,969 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:19,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-21 19:59:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:20,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 19:59:20,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:20,146 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:20,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227902762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:20,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:20,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-21 19:59:20,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321022681] [2021-10-21 19:59:20,148 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:20,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:20,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 8 times [2021-10-21 19:59:20,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:20,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872011858] [2021-10-21 19:59:20,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:20,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:20,173 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:20,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:20,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:20,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:59:20,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:59:20,211 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. cyclomatic complexity: 3 Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 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) [2021-10-21 19:59:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:20,264 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-10-21 19:59:20,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:59:20,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 25 transitions. [2021-10-21 19:59:20,266 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:20,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 25 transitions. [2021-10-21 19:59:20,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:20,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:20,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 25 transitions. [2021-10-21 19:59:20,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:20,267 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-10-21 19:59:20,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 25 transitions. [2021-10-21 19:59:20,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-10-21 19:59:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 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) [2021-10-21 19:59:20,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-10-21 19:59:20,269 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-21 19:59:20,269 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-10-21 19:59:20,269 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:59:20,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 24 transitions. [2021-10-21 19:59:20,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:20,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:20,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:20,271 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1, 1] [2021-10-21 19:59:20,271 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:20,271 INFO L791 eck$LassoCheckResult]: Stem: 800#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 801#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 802#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 803#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 804#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 805#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 810#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 822#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 821#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 820#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 819#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 818#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 817#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 816#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 815#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 814#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 813#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 812#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 811#L29-3 assume !(main_~j~0 < 10); 806#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 807#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 808#L44-3 [2021-10-21 19:59:20,271 INFO L793 eck$LassoCheckResult]: Loop: 808#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 809#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 808#L44-3 [2021-10-21 19:59:20,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:20,272 INFO L82 PathProgramCache]: Analyzing trace with hash 684732824, now seen corresponding path program 8 times [2021-10-21 19:59:20,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:20,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248992018] [2021-10-21 19:59:20,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:20,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:20,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:20,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248992018] [2021-10-21 19:59:20,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248992018] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:20,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659500339] [2021-10-21 19:59:20,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:59:20,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:20,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:20,389 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:20,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-21 19:59:20,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:59:20,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:59:20,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:59:20,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:20,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659500339] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:20,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:20,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-21 19:59:20,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655042080] [2021-10-21 19:59:20,608 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:20,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:20,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 9 times [2021-10-21 19:59:20,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:20,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365376062] [2021-10-21 19:59:20,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:20,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:20,614 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:20,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:20,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:20,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 19:59:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-21 19:59:20,665 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. cyclomatic complexity: 3 Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 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) [2021-10-21 19:59:20,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:20,726 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-10-21 19:59:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:59:20,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 27 transitions. [2021-10-21 19:59:20,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:20,731 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 27 transitions. [2021-10-21 19:59:20,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:20,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:20,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 27 transitions. [2021-10-21 19:59:20,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:20,733 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-10-21 19:59:20,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 27 transitions. [2021-10-21 19:59:20,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-10-21 19:59:20,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:20,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-10-21 19:59:20,737 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-21 19:59:20,737 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-10-21 19:59:20,737 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 19:59:20,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2021-10-21 19:59:20,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:20,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:20,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:20,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [9, 9, 1, 1, 1, 1, 1] [2021-10-21 19:59:20,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:20,746 INFO L791 eck$LassoCheckResult]: Stem: 924#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 925#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 926#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 927#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 928#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 929#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 934#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 948#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 947#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 946#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 945#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 944#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 943#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 942#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 941#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 940#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 939#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 938#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 937#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 936#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 935#L29-3 assume !(main_~j~0 < 10); 930#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 931#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 932#L44-3 [2021-10-21 19:59:20,746 INFO L793 eck$LassoCheckResult]: Loop: 932#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 933#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 932#L44-3 [2021-10-21 19:59:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:20,747 INFO L82 PathProgramCache]: Analyzing trace with hash 899903958, now seen corresponding path program 9 times [2021-10-21 19:59:20,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:20,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681198298] [2021-10-21 19:59:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:20,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:20,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:20,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681198298] [2021-10-21 19:59:20,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681198298] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:20,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538981927] [2021-10-21 19:59:20,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:59:20,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:20,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:20,898 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:20,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-21 19:59:30,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-21 19:59:30,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:59:30,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:59:30,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:59:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:30,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538981927] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:30,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:59:30,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-21 19:59:30,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716703219] [2021-10-21 19:59:30,571 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:59:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:30,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 10 times [2021-10-21 19:59:30,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:30,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049859119] [2021-10-21 19:59:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:30,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:30,577 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:59:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:59:30,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:59:30,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:59:30,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 19:59:30,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:59:30,621 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:59:30,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:59:30,685 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-21 19:59:30,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-21 19:59:30,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 28 transitions. [2021-10-21 19:59:30,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:30,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 28 transitions. [2021-10-21 19:59:30,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:59:30,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:59:30,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2021-10-21 19:59:30,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:59:30,687 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-21 19:59:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2021-10-21 19:59:30,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-21 19:59:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.037037037037037) internal successors, (28), 26 states have internal predecessors, (28), 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) [2021-10-21 19:59:30,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-21 19:59:30,690 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-21 19:59:30,690 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-21 19:59:30,690 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 19:59:30,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 28 transitions. [2021-10-21 19:59:30,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:59:30,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:59:30,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:59:30,692 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [10, 10, 1, 1, 1, 1, 1] [2021-10-21 19:59:30,692 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:59:30,693 INFO L791 eck$LassoCheckResult]: Stem: 1058#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1059#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet13, main_#t~post12, main_~j~0, main_#t~mem14.base, main_#t~mem14.offset, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20, main_#t~pre22, main_#t~mem21, main_#t~ret23, main_~#cont~0.base, main_~#cont~0.offset, main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset, main_~#a~0.base, main_~#a~0.offset, main_~i~0, main_~pa~0.base, main_~pa~0.offset;call main_~#cont~0.base, main_~#cont~0.offset := #Ultimate.allocOnStack(4);call main_~#dummy~0.base, main_~#dummy~0.offset := #Ultimate.allocOnStack(4);call main_~#dummies~0.base, main_~#dummies~0.offset := #Ultimate.allocOnStack(40);call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(40);havoc main_~i~0;havoc main_~pa~0.base, main_~pa~0.offset;main_~i~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~j~0 := 0; 1060#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1061#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1062#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1063#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1068#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1084#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1083#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1082#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1081#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1080#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1079#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1078#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1077#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1076#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1075#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1074#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1073#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1072#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1071#L29-3 assume !!(main_~j~0 < 10);call write~int(main_#t~nondet13, main_~#a~0.base, main_~#a~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet13;call write~$Pointer$(0, 0, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * main_~j~0, 4); 1070#L29-2 main_#t~post12 := main_~j~0;main_~j~0 := 1 + main_#t~post12;havoc main_#t~post12; 1069#L29-3 assume !(main_~j~0 < 10); 1064#L29-4 assume main_~i~0 >= 0 && main_~i~0 < 9;call write~int(main_~i~0, main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4);call write~$Pointer$(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, main_~#dummy~0.base, main_~#dummy~0.offset, 4);call write~$Pointer$(main_~#dummy~0.base, main_~#dummy~0.offset, main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call write~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset, main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#cont~0.base, main_~#cont~0.offset, 4);call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_#t~mem14.base, main_#t~mem14.offset + 4 * main_~i~0, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~pa~0.base, main_~pa~0.offset := main_#t~mem16.base, main_#t~mem16.offset + 4 * main_~i~0;havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17 := read~int(main_~#a~0.base, main_~#a~0.offset + 4 * main_~i~0, 4); 1065#L42 assume main_#t~mem17 > 0;havoc main_#t~mem17;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#dummies~0.base, main_~#dummies~0.offset + 4 * (1 + main_~i~0), 4);call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_#t~mem18.base, main_#t~mem18.offset, 4);call main_#t~mem20 := read~int(main_#t~mem19.base, main_#t~mem19.offset + 4 * main_~i~0, 4);main_~i~0 := main_#t~mem20 - 10;havoc main_#t~mem18.base, main_#t~mem18.offset;havoc main_#t~mem19.base, main_#t~mem19.offset;havoc main_#t~mem20; 1066#L44-3 [2021-10-21 19:59:30,693 INFO L793 eck$LassoCheckResult]: Loop: 1066#L44-3 call main_#t~mem21 := read~int(main_~pa~0.base, main_~pa~0.offset, 4); 1067#L44-1 assume !!(main_~i~0 < main_#t~mem21);havoc main_#t~mem21;main_#t~pre22 := 1 + main_~i~0;main_~i~0 := 1 + main_~i~0;havoc main_#t~pre22; 1066#L44-3 [2021-10-21 19:59:30,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:59:30,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1520933524, now seen corresponding path program 10 times [2021-10-21 19:59:30,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:59:30,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463026260] [2021-10-21 19:59:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:59:30,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:59:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:59:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 12 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:59:39,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:59:39,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463026260] [2021-10-21 19:59:39,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463026260] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:59:39,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872836969] [2021-10-21 19:59:39,527 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:59:39,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:59:39,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:59:39,537 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:59:39,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-21 20:03:07,664 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 20:03:07,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:03:07,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 72 conjunts are in the unsatisfiable core [2021-10-21 20:03:07,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:07,846 INFO L354 Elim1Store]: treesize reduction 93, result has 14.7 percent of original size [2021-10-21 20:03:07,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 33 [2021-10-21 20:03:08,107 INFO L354 Elim1Store]: treesize reduction 208, result has 13.7 percent of original size [2021-10-21 20:03:08,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 65 treesize of output 82 [2021-10-21 20:03:08,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2021-10-21 20:03:08,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-21 20:03:08,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:08,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2021-10-21 20:03:09,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2021-10-21 20:03:09,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 60 [2021-10-21 20:03:09,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:09,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 75 [2021-10-21 20:03:10,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 81 [2021-10-21 20:03:10,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:10,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 93 [2021-10-21 20:03:11,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 105 [2021-10-21 20:03:11,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:11,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 117 [2021-10-21 20:03:12,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:12,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 132 [2021-10-21 20:03:13,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 20:03:13,660 INFO L354 Elim1Store]: treesize reduction 1932, result has 0.1 percent of original size [2021-10-21 20:03:13,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 48 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 13 case distinctions, treesize of input 390 treesize of output 1 [2021-10-21 20:03:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:03:13,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872836969] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:03:13,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:03:13,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24] total 41 [2021-10-21 20:03:13,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105435995] [2021-10-21 20:03:13,678 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:03:13,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:13,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1798, now seen corresponding path program 11 times [2021-10-21 20:03:13,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:13,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720125849] [2021-10-21 20:03:13,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:13,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:13,687 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:13,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:13,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:03:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-21 20:03:13,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1498, Unknown=0, NotChecked=0, Total=1722 [2021-10-21 20:03:13,728 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. cyclomatic complexity: 3 Second operand has 42 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 41 states have internal predecessors, (50), 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) [2021-10-21 20:03:15,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:15,629 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2021-10-21 20:03:15,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-21 20:03:15,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 27 transitions. [2021-10-21 20:03:15,631 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:03:15,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-10-21 20:03:15,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:03:15,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:03:15,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:03:15,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:03:15,631 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:03:15,631 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:03:15,631 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:03:15,631 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 20:03:15,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:03:15,631 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:03:15,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:03:15,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:03:15 BoogieIcfgContainer [2021-10-21 20:03:15,637 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:03:15,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:03:15,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:03:15,638 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:03:15,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:59:09" (3/4) ... [2021-10-21 20:03:15,642 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:03:15,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:03:15,643 INFO L168 Benchmark]: Toolchain (without parser) took 247478.64 ms. Allocated memory was 117.4 MB in the beginning and 224.4 MB in the end (delta: 107.0 MB). Free memory was 79.9 MB in the beginning and 106.4 MB in the end (delta: -26.5 MB). Peak memory consumption was 83.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:15,643 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 117.4 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:03:15,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.59 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 92.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:15,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.46 ms. Allocated memory is still 117.4 MB. Free memory was 92.8 MB in the beginning and 91.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:15,644 INFO L168 Benchmark]: Boogie Preprocessor took 71.38 ms. Allocated memory is still 117.4 MB. Free memory was 91.0 MB in the beginning and 89.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:15,645 INFO L168 Benchmark]: RCFGBuilder took 493.03 ms. Allocated memory is still 117.4 MB. Free memory was 89.6 MB in the beginning and 73.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:15,645 INFO L168 Benchmark]: BuchiAutomizer took 246492.34 ms. Allocated memory was 117.4 MB in the beginning and 224.4 MB in the end (delta: 107.0 MB). Free memory was 73.1 MB in the beginning and 106.4 MB in the end (delta: -33.3 MB). Peak memory consumption was 75.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:15,645 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 224.4 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:03:15,647 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 117.4 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.59 ms. Allocated memory is still 117.4 MB. Free memory was 79.7 MB in the beginning and 92.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.46 ms. Allocated memory is still 117.4 MB. Free memory was 92.8 MB in the beginning and 91.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.38 ms. Allocated memory is still 117.4 MB. Free memory was 91.0 MB in the beginning and 89.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 493.03 ms. Allocated memory is still 117.4 MB. Free memory was 89.6 MB in the beginning and 73.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 246492.34 ms. Allocated memory was 117.4 MB in the beginning and 224.4 MB in the end (delta: 107.0 MB). Free memory was 73.1 MB in the beginning and 106.4 MB in the end (delta: -33.3 MB). Peak memory consumption was 75.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.10 ms. Allocated memory is still 224.4 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (11 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 19 * unknown-#length-unknown[a] + -8 * j and consists of 5 locations. 11 modules have a trivial ranking function, the largest among these consists of 42 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 246.3s and 13 iterations. TraceHistogramMax:10. Analysis of lassos took 243.4s. Construction of modules took 1.4s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 12. Minimization of nondet autom 0. Automata minimization 46.5ms AutomataMinimizationTime, 11 MinimizatonAttempts, 9 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 11. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 80 SDtfs, 80 SDslu, 144 SDs, 0 SdLazy, 622 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1479.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU11 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital419 mio100 ax100 hnf100 lsp95 ukn34 mio100 lsp41 div100 bol100 ite100 ukn100 eq165 hnf91 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:03:15,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:15,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-10-21 20:03:16,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-21 20:03:16,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-10-21 20:03:16,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:16,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-21 20:03:16,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-10-21 20:03:17,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2021-10-21 20:03:17,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-10-21 20:03:17,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-10-21 20:03:17,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca2a191e-f4ef-4345-809e-bcbad8b903a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...