./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strstr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strstr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 938c367f37ddd298c829be75f27a69a6e9a1154b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:36:55,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:36:55,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:36:55,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:36:55,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:36:55,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:36:55,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:36:55,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:36:55,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:36:55,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:36:55,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:36:55,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:36:55,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:36:55,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:36:55,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:36:55,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:36:55,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:36:55,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:36:55,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:36:55,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:36:55,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:36:55,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:36:55,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:36:55,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:36:55,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:36:55,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:36:55,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:36:55,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:36:55,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:36:55,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:36:55,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:36:55,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:36:55,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:36:55,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:36:55,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:36:55,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:36:55,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:36:55,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:36:55,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:36:55,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:36:55,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:36:55,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:36:55,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:36:55,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:36:55,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:36:55,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:36:55,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:36:55,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:36:55,166 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:36:55,167 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:36:55,167 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:36:55,167 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:36:55,167 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:36:55,168 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:36:55,168 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:36:55,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:36:55,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:36:55,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:36:55,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:36:55,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:36:55,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:36:55,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:36:55,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:36:55,170 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:36:55,170 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:36:55,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:36:55,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:36:55,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:36:55,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:36:55,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:36:55,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:36:55,173 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:36:55,173 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_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 938c367f37ddd298c829be75f27a69a6e9a1154b [2021-10-13 00:36:55,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:36:55,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:36:55,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:36:55,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:36:55,445 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:36:55,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-dietlibc/strstr.i [2021-10-13 00:36:55,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/data/00fceb13c/6d80eb07e0c7444d83d8c84f3b7473ec/FLAGe5a31e9af [2021-10-13 00:36:56,061 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:36:56,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/sv-benchmarks/c/termination-dietlibc/strstr.i [2021-10-13 00:36:56,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/data/00fceb13c/6d80eb07e0c7444d83d8c84f3b7473ec/FLAGe5a31e9af [2021-10-13 00:36:56,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/data/00fceb13c/6d80eb07e0c7444d83d8c84f3b7473ec [2021-10-13 00:36:56,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:36:56,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:36:56,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:36:56,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:36:56,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:36:56,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:56" (1/1) ... [2021-10-13 00:36:56,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce772ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:56, skipping insertion in model container [2021-10-13 00:36:56,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:56" (1/1) ... [2021-10-13 00:36:56,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:36:56,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:36:56,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:36:56,948 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:36:56,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:36:57,031 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:36:57,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57 WrapperNode [2021-10-13 00:36:57,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:36:57,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:36:57,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:36:57,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:36:57,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:36:57,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:36:57,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:36:57,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:36:57,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:36:57,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:36:57,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:36:57,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:36:57,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (1/1) ... [2021-10-13 00:36:57,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:36:57,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:57,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:36:57,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:36:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:36:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:36:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:36:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:36:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:36:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:36:57,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:36:57,581 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 00:36:57,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:57 BoogieIcfgContainer [2021-10-13 00:36:57,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:36:57,584 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:36:57,584 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:36:57,600 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:36:57,601 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:36:57,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:36:56" (1/3) ... [2021-10-13 00:36:57,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77d12d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:36:57, skipping insertion in model container [2021-10-13 00:36:57,602 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:36:57,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:57" (2/3) ... [2021-10-13 00:36:57,603 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77d12d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:36:57, skipping insertion in model container [2021-10-13 00:36:57,603 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:36:57,603 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:57" (3/3) ... [2021-10-13 00:36:57,604 INFO L389 chiAutomizerObserver]: Analyzing ICFG strstr.i [2021-10-13 00:36:57,668 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:36:57,668 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:36:57,668 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:36:57,668 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:36:57,669 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:36:57,669 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:36:57,669 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:36:57,669 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:36:57,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:57,704 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-10-13 00:36:57,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:36:57,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:36:57,710 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 00:36:57,710 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:36:57,711 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:36:57,711 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:57,714 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2021-10-13 00:36:57,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:36:57,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:36:57,715 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 00:36:57,715 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:36:57,720 INFO L791 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5#L-1true havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 12#L541true assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 23#L545true assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 31#L508true assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 29#L509-4true [2021-10-13 00:36:57,721 INFO L793 eck$LassoCheckResult]: Loop: 29#L509-4true call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 16#L509-1true assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 11#L509-3true strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 29#L509-4true [2021-10-13 00:36:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:57,727 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-10-13 00:36:57,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:57,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964278647] [2021-10-13 00:36:57,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:57,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:57,846 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:57,895 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:57,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:57,921 INFO L82 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2021-10-13 00:36:57,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:57,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094834594] [2021-10-13 00:36:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:57,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:57,935 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:57,944 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:57,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:57,947 INFO L82 PathProgramCache]: Analyzing trace with hash 179566670, now seen corresponding path program 1 times [2021-10-13 00:36:57,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:57,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045076297] [2021-10-13 00:36:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:57,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:57,999 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:58,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:36:58,915 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:36:58,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:36:58,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:36:58,916 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:36:58,917 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:36:58,917 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:36:58,917 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:36:58,917 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:36:58,917 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration1_Lasso [2021-10-13 00:36:58,917 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:36:58,918 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:36:58,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:58,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:36:59,807 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:36:59,815 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:36:59,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:36:59,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:59,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:36:59,830 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 [2021-10-13 00:36:59,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:36:59,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:36:59,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:36:59,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:36:59,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:36:59,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:36:59,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:36:59,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:36:59,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:36:59,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:59,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:36:59,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:59,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:36:59,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:36:59,894 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 [2021-10-13 00:36:59,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:36:59,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:36:59,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:36:59,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:36:59,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:36:59,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:36:59,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:36:59,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:36:59,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:59,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:36:59,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:59,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:36:59,960 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 [2021-10-13 00:36:59,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:36:59,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:36:59,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:36:59,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:36:59,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:36:59,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:36:59,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:36:59,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:36:59,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:37:00,035 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 [2021-10-13 00:37:00,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-13 00:37:00,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:37:00,083 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 [2021-10-13 00:37:00,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:00,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,114 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:37:00,116 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 [2021-10-13 00:37:00,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:00,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-13 00:37:00,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,149 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:37:00,153 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 [2021-10-13 00:37:00,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:00,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-13 00:37:00,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,194 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:37:00,196 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 [2021-10-13 00:37:00,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:00,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,227 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:37:00,231 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 [2021-10-13 00:37:00,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:00,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,261 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:37:00,272 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 [2021-10-13 00:37:00,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:00,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,286 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,310 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:37:00,314 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 [2021-10-13 00:37:00,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:00,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,349 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:37:00,350 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 [2021-10-13 00:37:00,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,360 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,410 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:37:00,417 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 [2021-10-13 00:37:00,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,482 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:37:00,487 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 [2021-10-13 00:37:00,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:00,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,494 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:37:00,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,495 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:37:00,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:00,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,518 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:37:00,521 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 [2021-10-13 00:37:00,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,583 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:37:00,584 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 [2021-10-13 00:37:00,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-13 00:37:00,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,618 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:37:00,620 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 [2021-10-13 00:37:00,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,640 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,702 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:37:00,704 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 [2021-10-13 00:37:00,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:00,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:00,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,738 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:37:00,743 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 [2021-10-13 00:37:00,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:00,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:00,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:00,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:00,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:00,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:00,785 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:37:00,839 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-10-13 00:37:00,839 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-13 00:37:00,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:00,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,846 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:37:00,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:37:00,927 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-13 00:37:00,927 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:37:00,928 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~out_len~0, ULTIMATE.start_strlen_~s.offset) = 1*ULTIMATE.start_main_~out_len~0 - 1*ULTIMATE.start_strlen_~s.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_1 + 1*ULTIMATE.start_main_~out_len~0 >= 0] [2021-10-13 00:37:00,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:01,035 INFO L297 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2021-10-13 00:37:01,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:01,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:01,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:37:01,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:01,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-13 00:37:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:01,223 WARN L261 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:37:01,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:01,310 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 00:37:01,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:01,406 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 90 states and 130 transitions. Complement of second has 7 states. [2021-10-13 00:37:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:37:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:01,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2021-10-13 00:37:01,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-13 00:37:01,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:01,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-13 00:37:01,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:01,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 85 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-13 00:37:01,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:01,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 130 transitions. [2021-10-13 00:37:01,419 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-10-13 00:37:01,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 47 states and 62 transitions. [2021-10-13 00:37:01,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2021-10-13 00:37:01,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-13 00:37:01,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 62 transitions. [2021-10-13 00:37:01,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:01,426 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-13 00:37:01,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 62 transitions. [2021-10-13 00:37:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-13 00:37:01,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 46 states have internal predecessors, (62), 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) [2021-10-13 00:37:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2021-10-13 00:37:01,455 INFO L704 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-13 00:37:01,455 INFO L587 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-13 00:37:01,455 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:37:01,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2021-10-13 00:37:01,457 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 24 [2021-10-13 00:37:01,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:01,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:01,458 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:01,458 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:01,458 INFO L791 eck$LassoCheckResult]: Stem: 245#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 222#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 223#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 237#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 247#L508 assume strlen_~s.base == 0 && strlen_~s.offset == 0;strlen_#res := 0; 255#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 262#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 263#L509-10 [2021-10-13 00:37:01,459 INFO L793 eck$LassoCheckResult]: Loop: 263#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 265#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 266#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 263#L509-10 [2021-10-13 00:37:01,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:01,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1806906284, now seen corresponding path program 1 times [2021-10-13 00:37:01,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:01,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135908207] [2021-10-13 00:37:01,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:01,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:01,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:01,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135908207] [2021-10-13 00:37:01,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135908207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:37:01,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:37:01,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:37:01,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023373809] [2021-10-13 00:37:01,520 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:01,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:01,521 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 1 times [2021-10-13 00:37:01,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:01,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91196194] [2021-10-13 00:37:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:01,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,528 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,533 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:01,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:01,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:37:01,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:37:01,586 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:01,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:01,602 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-10-13 00:37:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:37:01,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-13 00:37:01,604 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-13 00:37:01,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2021-10-13 00:37:01,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-13 00:37:01,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-13 00:37:01,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2021-10-13 00:37:01,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:01,606 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-13 00:37:01,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2021-10-13 00:37:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 00:37:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 28 states have internal predecessors, (36), 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) [2021-10-13 00:37:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-10-13 00:37:01,609 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-13 00:37:01,609 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-13 00:37:01,609 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:37:01,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2021-10-13 00:37:01,610 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-10-13 00:37:01,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:01,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:01,611 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:01,611 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:01,612 INFO L791 eck$LassoCheckResult]: Stem: 325#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 304#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 305#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 317#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 326#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 330#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 321#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 319#L509-5 strlen_#res := strlen_~i~0; 320#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 323#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 318#L509-10 [2021-10-13 00:37:01,612 INFO L793 eck$LassoCheckResult]: Loop: 318#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 306#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 307#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 318#L509-10 [2021-10-13 00:37:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash 764823385, now seen corresponding path program 1 times [2021-10-13 00:37:01,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:01,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889691317] [2021-10-13 00:37:01,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:01,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,632 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,673 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:01,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:01,679 INFO L82 PathProgramCache]: Analyzing trace with hash 72652, now seen corresponding path program 2 times [2021-10-13 00:37:01,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:01,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595640379] [2021-10-13 00:37:01,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:01,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,688 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,695 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:01,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:01,697 INFO L82 PathProgramCache]: Analyzing trace with hash 52000116, now seen corresponding path program 1 times [2021-10-13 00:37:01,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:01,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158260604] [2021-10-13 00:37:01,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:01,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,737 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:01,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:02,771 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:37:02,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:37:02,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:37:02,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:37:02,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:37:02,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:02,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:37:02,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:37:02,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration3_Lasso [2021-10-13 00:37:02,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:37:02,772 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:37:02,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:02,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:03,683 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:37:03,683 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:37:03,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:03,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:03,695 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:03,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:37:03,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:03,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:03,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:03,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:03,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:03,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:03,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:03,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:03,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:03,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:03,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:03,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:03,726 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:03,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:37:03,727 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 [2021-10-13 00:37:03,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:03,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:03,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:03,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:03,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:03,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:03,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:03,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:03,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-13 00:37:03,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:03,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:03,755 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:03,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:37:03,757 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 [2021-10-13 00:37:03,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:03,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:03,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:03,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:03,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:03,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:03,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:03,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:03,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-13 00:37:03,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:03,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:03,805 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:03,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:37:03,817 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 [2021-10-13 00:37:03,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:03,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:03,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:03,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:03,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:03,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:03,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:03,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:03,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-13 00:37:03,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:03,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:03,849 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:03,881 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 [2021-10-13 00:37:03,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:03,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:03,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:03,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:03,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:03,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:03,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:37:03,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:03,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:03,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:03,942 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:03,944 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 [2021-10-13 00:37:03,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:37:03,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:03,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:03,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:03,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:03,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:03,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:03,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:03,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:03,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:03,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:03,973 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:03,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:37:03,977 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 [2021-10-13 00:37:03,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:03,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:03,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:03,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:03,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:03,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:03,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,010 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:37:04,012 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 [2021-10-13 00:37:04,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-13 00:37:04,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,040 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:37:04,041 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 [2021-10-13 00:37:04,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-13 00:37:04,069 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,070 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:37:04,071 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 [2021-10-13 00:37:04,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,099 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:37:04,100 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 [2021-10-13 00:37:04,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,129 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:37:04,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:04,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,170 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:37:04,171 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 [2021-10-13 00:37:04,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-13 00:37:04,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,213 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:37:04,215 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 [2021-10-13 00:37:04,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-13 00:37:04,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,243 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:37:04,244 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 [2021-10-13 00:37:04,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-13 00:37:04,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,318 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:37:04,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:04,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,351 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,353 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 [2021-10-13 00:37:04,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:37:04,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,394 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:37:04,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:04,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,405 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,466 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,474 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 [2021-10-13 00:37:04,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:04,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:37:04,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,535 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,537 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 [2021-10-13 00:37:04,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,547 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,547 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:37:04,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,601 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,602 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,604 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 [2021-10-13 00:37:04,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:37:04,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,671 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,673 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 [2021-10-13 00:37:04,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:37:04,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,734 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,735 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 [2021-10-13 00:37:04,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,748 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,748 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:37:04,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,802 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,805 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 [2021-10-13 00:37:04,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 00:37:04,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,867 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,869 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 [2021-10-13 00:37:04,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:04,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,878 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:37:04,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,879 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:37:04,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:04,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-13 00:37:04,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:04,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:04,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:04,931 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:04,934 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 [2021-10-13 00:37:04,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:04,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:04,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:04,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:04,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:04,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:04,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-13 00:37:04,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:05,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:05,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:05,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:05,026 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:05,030 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 [2021-10-13 00:37:05,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:05,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:05,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:05,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:05,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:05,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:05,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-13 00:37:05,081 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:37:05,101 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-13 00:37:05,101 INFO L444 ModelExtractionUtils]: 23 out of 31 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-13 00:37:05,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:05,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:05,103 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:05,104 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:37:05,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-13 00:37:05,130 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:37:05,130 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:37:05,130 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strlen_~s.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2) = -1*ULTIMATE.start_strlen_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_2 Supporting invariants [] [2021-10-13 00:37:05,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:05,212 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2021-10-13 00:37:05,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:05,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 00:37:05,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:05,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:37:05,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:05,403 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-10-13 00:37:05,403 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 10 Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:05,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 10. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 72 transitions. Complement of second has 7 states. [2021-10-13 00:37:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:37:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2021-10-13 00:37:05,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:37:05,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:05,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-13 00:37:05,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:05,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-13 00:37:05,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:05,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 72 transitions. [2021-10-13 00:37:05,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-13 00:37:05,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 43 states and 54 transitions. [2021-10-13 00:37:05,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-13 00:37:05,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-13 00:37:05,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 54 transitions. [2021-10-13 00:37:05,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:05,507 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-10-13 00:37:05,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 54 transitions. [2021-10-13 00:37:05,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2021-10-13 00:37:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 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) [2021-10-13 00:37:05,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-13 00:37:05,510 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-13 00:37:05,510 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-13 00:37:05,510 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:37:05,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2021-10-13 00:37:05,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-13 00:37:05,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:05,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:05,511 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:05,511 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 00:37:05,512 INFO L791 eck$LassoCheckResult]: Stem: 551#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 528#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 529#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 542#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 552#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 556#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 546#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 544#L509-5 strlen_#res := strlen_~i~0; 545#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 548#L508-2 assume strlen_~s.base == 0 && strlen_~s.offset == 0;strlen_#res := 0; 527#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 553#L529 assume !(0 == strstr_~nl~0 % 4294967296); 536#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 537#L531-3 [2021-10-13 00:37:05,512 INFO L793 eck$LassoCheckResult]: Loop: 537#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 550#L532 assume !strstr_#t~short17; 539#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 538#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 537#L531-3 [2021-10-13 00:37:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:05,512 INFO L82 PathProgramCache]: Analyzing trace with hash 51953446, now seen corresponding path program 1 times [2021-10-13 00:37:05,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:05,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154507327] [2021-10-13 00:37:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:05,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:05,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:05,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:05,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154507327] [2021-10-13 00:37:05,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154507327] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:37:05,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:37:05,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:37:05,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843569281] [2021-10-13 00:37:05,584 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:05,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:05,587 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 1 times [2021-10-13 00:37:05,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:05,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289290998] [2021-10-13 00:37:05,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:05,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:05,602 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:05,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:05,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:05,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:37:05,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:37:05,742 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:05,781 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-10-13 00:37:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:37:05,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2021-10-13 00:37:05,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-13 00:37:05,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2021-10-13 00:37:05,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-13 00:37:05,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-13 00:37:05,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2021-10-13 00:37:05,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:05,784 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-13 00:37:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2021-10-13 00:37:05,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-13 00:37:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 states have internal predecessors, (38), 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) [2021-10-13 00:37:05,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-13 00:37:05,791 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-13 00:37:05,791 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-13 00:37:05,791 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:37:05,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-13 00:37:05,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-13 00:37:05,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:05,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:05,794 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:05,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 00:37:05,795 INFO L791 eck$LassoCheckResult]: Stem: 623#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 600#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 601#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 615#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 624#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 628#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 618#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 616#L509-5 strlen_#res := strlen_~i~0; 617#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 620#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 621#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 602#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 598#L509-11 strlen_#res := strlen_~i~0; 599#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 625#L529 assume !(0 == strstr_~nl~0 % 4294967296); 608#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 609#L531-3 [2021-10-13 00:37:05,795 INFO L793 eck$LassoCheckResult]: Loop: 609#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 622#L532 assume !strstr_#t~short17; 611#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 610#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 609#L531-3 [2021-10-13 00:37:05,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:05,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1349410205, now seen corresponding path program 1 times [2021-10-13 00:37:05,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:05,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423807830] [2021-10-13 00:37:05,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:05,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:05,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:05,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423807830] [2021-10-13 00:37:05,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423807830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:37:05,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:37:05,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:37:05,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794966610] [2021-10-13 00:37:05,889 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:05,890 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 2 times [2021-10-13 00:37:05,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:05,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761034789] [2021-10-13 00:37:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:05,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:05,895 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:05,900 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:06,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:06,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:37:06,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:37:06,021 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-13 00:37:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:06,065 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-10-13 00:37:06,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:37:06,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 74 transitions. [2021-10-13 00:37:06,083 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-13 00:37:06,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 47 states and 56 transitions. [2021-10-13 00:37:06,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-13 00:37:06,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-10-13 00:37:06,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 56 transitions. [2021-10-13 00:37:06,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:06,084 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 56 transitions. [2021-10-13 00:37:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 56 transitions. [2021-10-13 00:37:06,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 31. [2021-10-13 00:37:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:06,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-10-13 00:37:06,087 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-13 00:37:06,087 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-13 00:37:06,087 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:37:06,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2021-10-13 00:37:06,088 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-13 00:37:06,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:06,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:06,089 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:06,089 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 00:37:06,089 INFO L791 eck$LassoCheckResult]: Stem: 732#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 709#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 710#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 724#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 733#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 737#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 728#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 721#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 722#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 727#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 725#L509-5 strlen_#res := strlen_~i~0; 726#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 729#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 730#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 714#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 707#L509-11 strlen_#res := strlen_~i~0; 708#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 734#L529 assume !(0 == strstr_~nl~0 % 4294967296); 717#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 718#L531-3 [2021-10-13 00:37:06,090 INFO L793 eck$LassoCheckResult]: Loop: 718#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 731#L532 assume !strstr_#t~short17; 719#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 720#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 718#L531-3 [2021-10-13 00:37:06,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:06,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1796108770, now seen corresponding path program 1 times [2021-10-13 00:37:06,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:06,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893606868] [2021-10-13 00:37:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:06,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:06,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:06,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893606868] [2021-10-13 00:37:06,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893606868] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:06,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664172462] [2021-10-13 00:37:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:06,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:06,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:06,277 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:06,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-13 00:37:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:06,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:37:06,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:37:06,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664172462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:37:06,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:37:06,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2021-10-13 00:37:06,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907526743] [2021-10-13 00:37:06,451 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:06,451 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 3 times [2021-10-13 00:37:06,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:06,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139386295] [2021-10-13 00:37:06,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:06,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,457 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:06,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:06,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:37:06,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:37:06,573 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:06,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:06,621 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2021-10-13 00:37:06,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:37:06,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 43 transitions. [2021-10-13 00:37:06,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-13 00:37:06,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 33 states and 38 transitions. [2021-10-13 00:37:06,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-13 00:37:06,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-13 00:37:06,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-10-13 00:37:06,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:06,624 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-10-13 00:37:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-10-13 00:37:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-10-13 00:37:06,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 30 states have internal predecessors, (36), 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) [2021-10-13 00:37:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-10-13 00:37:06,626 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-13 00:37:06,626 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-13 00:37:06,626 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:37:06,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2021-10-13 00:37:06,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-13 00:37:06,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:06,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:06,627 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:06,627 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 00:37:06,628 INFO L791 eck$LassoCheckResult]: Stem: 877#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 854#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 855#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 868#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 878#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 882#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 873#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 866#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 867#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 872#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 870#L509-5 strlen_#res := strlen_~i~0; 871#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 874#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 875#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 857#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 858#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 869#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 856#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 852#L509-11 strlen_#res := strlen_~i~0; 853#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 879#L529 assume !(0 == strstr_~nl~0 % 4294967296); 862#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 863#L531-3 [2021-10-13 00:37:06,628 INFO L793 eck$LassoCheckResult]: Loop: 863#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 876#L532 assume !strstr_#t~short17; 865#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 864#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 863#L531-3 [2021-10-13 00:37:06,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:06,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1624521053, now seen corresponding path program 1 times [2021-10-13 00:37:06,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:06,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021042159] [2021-10-13 00:37:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:06,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,643 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,662 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:06,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:06,663 INFO L82 PathProgramCache]: Analyzing trace with hash 3227613, now seen corresponding path program 4 times [2021-10-13 00:37:06,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:06,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892875650] [2021-10-13 00:37:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:06,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,668 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:06,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:06,672 INFO L82 PathProgramCache]: Analyzing trace with hash 16049535, now seen corresponding path program 1 times [2021-10-13 00:37:06,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:06,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130576848] [2021-10-13 00:37:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:06,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,697 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:06,732 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:06,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:08,185 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:37:08,185 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:37:08,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:37:08,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:37:08,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:37:08,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:08,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:37:08,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:37:08,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration7_Lasso [2021-10-13 00:37:08,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:37:08,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:37:08,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:08,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:09,432 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:37:09,432 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:37:09,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,440 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-13 00:37:09,441 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 [2021-10-13 00:37:09,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,470 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-13 00:37:09,471 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 [2021-10-13 00:37:09,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,500 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-13 00:37:09,501 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 [2021-10-13 00:37:09,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,535 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-13 00:37:09,538 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 [2021-10-13 00:37:09,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,547 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:09,547 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:09,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-13 00:37:09,569 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,570 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-13 00:37:09,572 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 [2021-10-13 00:37:09,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-13 00:37:09,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,601 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-13 00:37:09,603 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 [2021-10-13 00:37:09,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-13 00:37:09,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,632 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-13 00:37:09,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:09,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,670 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-13 00:37:09,671 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 [2021-10-13 00:37:09,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-13 00:37:09,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,700 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-13 00:37:09,701 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 [2021-10-13 00:37:09,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,730 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-13 00:37:09,732 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 [2021-10-13 00:37:09,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-13 00:37:09,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,762 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-13 00:37:09,764 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 [2021-10-13 00:37:09,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:09,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:09,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,850 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,852 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 [2021-10-13 00:37:09,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:09,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:09,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:09,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:09,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:09,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-13 00:37:09,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,907 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,909 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 [2021-10-13 00:37:09,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:09,918 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-13 00:37:09,918 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-13 00:37:09,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:09,926 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2021-10-13 00:37:09,926 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-13 00:37:09,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-13 00:37:09,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:09,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:09,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:09,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:09,988 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:09,990 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 [2021-10-13 00:37:09,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:10,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:10,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:10,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:10,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:10,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:10,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-13 00:37:10,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:37:10,065 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-13 00:37:10,066 INFO L444 ModelExtractionUtils]: 49 out of 55 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-13 00:37:10,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:10,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:10,070 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:10,072 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:37:10,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-13 00:37:10,089 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:37:10,090 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:37:10,090 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strstr_~haystack.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_3) = -1*ULTIMATE.start_strstr_~haystack.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc20.base)_3 Supporting invariants [] [2021-10-13 00:37:10,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:10,259 INFO L297 tatePredicateManager]: 35 out of 36 supporting invariants were superfluous and have been removed [2021-10-13 00:37:10,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:10,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:37:10,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:10,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:10,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:37:10,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:10,550 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2021-10-13 00:37:10,550 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 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) [2021-10-13 00:37:10,603 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 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) Result 41 states and 51 transitions. Complement of second has 8 states. [2021-10-13 00:37:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:37:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 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) [2021-10-13 00:37:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2021-10-13 00:37:10,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 4 letters. [2021-10-13 00:37:10,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:10,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 26 letters. Loop has 4 letters. [2021-10-13 00:37:10,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:10,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 22 letters. Loop has 8 letters. [2021-10-13 00:37:10,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:10,606 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-10-13 00:37:10,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:10,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 45 transitions. [2021-10-13 00:37:10,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-13 00:37:10,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2021-10-13 00:37:10,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 45 transitions. [2021-10-13 00:37:10,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:10,608 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 45 transitions. [2021-10-13 00:37:10,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 45 transitions. [2021-10-13 00:37:10,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2021-10-13 00:37:10,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 36 states have internal predecessors, (44), 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) [2021-10-13 00:37:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-10-13 00:37:10,611 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-13 00:37:10,611 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-13 00:37:10,611 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:37:10,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 44 transitions. [2021-10-13 00:37:10,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:10,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:10,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:10,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:10,612 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:10,613 INFO L791 eck$LassoCheckResult]: Stem: 1211#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1183#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 1184#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 1201#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1212#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1217#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1206#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1199#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1200#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1205#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1203#L509-5 strlen_#res := strlen_~i~0; 1204#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1207#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1208#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1191#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1192#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1202#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1190#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1181#L509-11 strlen_#res := strlen_~i~0; 1182#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1213#L529 assume !(0 == strstr_~nl~0 % 4294967296); 1193#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1194#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1209#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 1186#L517-3 [2021-10-13 00:37:10,613 INFO L793 eck$LassoCheckResult]: Loop: 1186#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1214#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 1185#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 1186#L517-3 [2021-10-13 00:37:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2091601114, now seen corresponding path program 1 times [2021-10-13 00:37:10,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:10,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981889887] [2021-10-13 00:37:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:10,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:10,633 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:10,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:10,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:10,655 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 1 times [2021-10-13 00:37:10,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:10,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401818178] [2021-10-13 00:37:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:10,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:10,663 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:10,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:10,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:10,670 INFO L82 PathProgramCache]: Analyzing trace with hash 496824785, now seen corresponding path program 1 times [2021-10-13 00:37:10,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:10,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679001476] [2021-10-13 00:37:10,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:10,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:10,692 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:10,719 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:12,687 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:37:12,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:37:12,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:37:12,688 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:37:12,688 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:37:12,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:12,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:37:12,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:37:12,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration8_Lasso [2021-10-13 00:37:12,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:37:12,688 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:37:12,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:12,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:13,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:13,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:13,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:14,652 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:37:14,653 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:37:14,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,673 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-13 00:37:14,675 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 [2021-10-13 00:37:14,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-13 00:37:14,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,705 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-13 00:37:14,709 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 [2021-10-13 00:37:14,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-13 00:37:14,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,737 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-13 00:37:14,738 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 [2021-10-13 00:37:14,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-13 00:37:14,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,767 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-13 00:37:14,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:14,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,777 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-13 00:37:14,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,797 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-13 00:37:14,798 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 [2021-10-13 00:37:14,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-13 00:37:14,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,841 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:14,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-13 00:37:14,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-13 00:37:14,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,874 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-13 00:37:14,875 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 [2021-10-13 00:37:14,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,883 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:14,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:14,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-13 00:37:14,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,910 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-13 00:37:14,911 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 [2021-10-13 00:37:14,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-13 00:37:14,939 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,940 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,941 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 [2021-10-13 00:37:14,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-13 00:37:14,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:14,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:14,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:14,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:14,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:14,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:14,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:14,969 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:14,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-13 00:37:14,970 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 [2021-10-13 00:37:14,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:14,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:14,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:14,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:14,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:14,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:14,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,014 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-13 00:37:15,015 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 [2021-10-13 00:37:15,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,044 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-13 00:37:15,045 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 [2021-10-13 00:37:15,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,073 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-13 00:37:15,075 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 [2021-10-13 00:37:15,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,104 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-13 00:37:15,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:15,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,136 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-13 00:37:15,137 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 [2021-10-13 00:37:15,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,181 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-13 00:37:15,182 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 [2021-10-13 00:37:15,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,201 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-13 00:37:15,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,221 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-13 00:37:15,222 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 [2021-10-13 00:37:15,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,270 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-13 00:37:15,271 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 [2021-10-13 00:37:15,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-10-13 00:37:15,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,300 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-13 00:37:15,301 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 [2021-10-13 00:37:15,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-10-13 00:37:15,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,329 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-13 00:37:15,331 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 [2021-10-13 00:37:15,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,359 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-13 00:37:15,361 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 [2021-10-13 00:37:15,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,389 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-13 00:37:15,390 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 [2021-10-13 00:37:15,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,418 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-13 00:37:15,421 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 [2021-10-13 00:37:15,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,457 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-13 00:37:15,458 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 [2021-10-13 00:37:15,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-13 00:37:15,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,487 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-13 00:37:15,488 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 [2021-10-13 00:37:15,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,496 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-10-13 00:37:15,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,516 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-13 00:37:15,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:15,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,545 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-13 00:37:15,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:37:15,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,576 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-13 00:37:15,578 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 [2021-10-13 00:37:15,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:15,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:15,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:15,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,606 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-13 00:37:15,607 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 [2021-10-13 00:37:15,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,616 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,638 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-13 00:37:15,639 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 [2021-10-13 00:37:15,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,647 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-10-13 00:37:15,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,669 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-13 00:37:15,670 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 [2021-10-13 00:37:15,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,677 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-13 00:37:15,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,683 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-13 00:37:15,683 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-10-13 00:37:15,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,713 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-13 00:37:15,714 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 [2021-10-13 00:37:15,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-10-13 00:37:15,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,745 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-13 00:37:15,765 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 [2021-10-13 00:37:15,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,807 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-13 00:37:15,809 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 [2021-10-13 00:37:15,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-10-13 00:37:15,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,861 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-13 00:37:15,862 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 [2021-10-13 00:37:15,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,893 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-13 00:37:15,894 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 [2021-10-13 00:37:15,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:15,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:15,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:15,924 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:15,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-13 00:37:15,925 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 [2021-10-13 00:37:15,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:15,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:15,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:15,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:15,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:15,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:15,972 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:37:16,079 INFO L443 ModelExtractionUtils]: Simplification made 43 calls to the SMT solver. [2021-10-13 00:37:16,079 INFO L444 ModelExtractionUtils]: 34 out of 70 variables were initially zero. Simplification set additionally 33 variables to zero. [2021-10-13 00:37:16,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:16,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:16,080 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:16,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-13 00:37:16,082 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:37:16,089 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:37:16,090 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:37:16,090 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_4) = -1*ULTIMATE.start_memcmp_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc22.base)_4 Supporting invariants [] [2021-10-13 00:37:16,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:16,321 INFO L297 tatePredicateManager]: 47 out of 51 supporting invariants were superfluous and have been removed [2021-10-13 00:37:16,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:16,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 00:37:16,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:16,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 00:37:16,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:16,928 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-10-13 00:37:16,928 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 44 transitions. cyclomatic complexity: 11 Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 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) [2021-10-13 00:37:17,121 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 44 transitions. cyclomatic complexity: 11. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 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) Result 92 states and 111 transitions. Complement of second has 13 states. [2021-10-13 00:37:17,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 6 stem states 2 non-accepting loop states 2 accepting loop states [2021-10-13 00:37:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 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) [2021-10-13 00:37:17,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 48 transitions. [2021-10-13 00:37:17,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 48 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-13 00:37:17,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:17,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 48 transitions. Stem has 27 letters. Loop has 3 letters. [2021-10-13 00:37:17,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:17,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 48 transitions. Stem has 24 letters. Loop has 6 letters. [2021-10-13 00:37:17,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:17,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 111 transitions. [2021-10-13 00:37:17,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:17,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 70 states and 85 transitions. [2021-10-13 00:37:17,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-13 00:37:17,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-13 00:37:17,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 85 transitions. [2021-10-13 00:37:17,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:17,127 INFO L681 BuchiCegarLoop]: Abstraction has 70 states and 85 transitions. [2021-10-13 00:37:17,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 85 transitions. [2021-10-13 00:37:17,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 43. [2021-10-13 00:37:17,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 42 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:17,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2021-10-13 00:37:17,131 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-10-13 00:37:17,131 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-10-13 00:37:17,131 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:37:17,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 52 transitions. [2021-10-13 00:37:17,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:17,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:17,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:17,132 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:17,132 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:17,132 INFO L791 eck$LassoCheckResult]: Stem: 1676#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1649#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 1650#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 1667#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1677#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1683#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1671#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1664#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1665#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1670#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1668#L509-5 strlen_#res := strlen_~i~0; 1669#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 1672#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 1673#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1652#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 1653#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 1666#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 1651#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 1647#L509-11 strlen_#res := strlen_~i~0; 1648#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 1678#L529 assume !(0 == strstr_~nl~0 % 4294967296); 1658#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 1659#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1689#L532 assume !strstr_#t~short17; 1663#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 1660#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 1662#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 1674#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 1655#L517-3 [2021-10-13 00:37:17,133 INFO L793 eck$LassoCheckResult]: Loop: 1655#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 1679#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 1654#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 1655#L517-3 [2021-10-13 00:37:17,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:17,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1756263678, now seen corresponding path program 1 times [2021-10-13 00:37:17,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:17,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795879398] [2021-10-13 00:37:17,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:17,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:17,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:17,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:17,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795879398] [2021-10-13 00:37:17,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795879398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:17,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787156000] [2021-10-13 00:37:17,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:17,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:17,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:17,340 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:17,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2021-10-13 00:37:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:17,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-13 00:37:17,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:17,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-10-13 00:37:17,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:18,438 INFO L354 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2021-10-13 00:37:18,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 47 [2021-10-13 00:37:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:18,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787156000] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:18,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:18,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2021-10-13 00:37:18,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19164475] [2021-10-13 00:37:18,469 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:18,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:18,470 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 2 times [2021-10-13 00:37:18,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:18,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513864883] [2021-10-13 00:37:18,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:18,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:18,478 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:18,483 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:18,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:18,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:37:18,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:37:18,605 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. cyclomatic complexity: 14 Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 23 states have internal predecessors, (54), 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) [2021-10-13 00:37:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:20,735 INFO L93 Difference]: Finished difference Result 157 states and 186 transitions. [2021-10-13 00:37:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-13 00:37:20,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 186 transitions. [2021-10-13 00:37:20,737 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 00:37:20,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 136 states and 162 transitions. [2021-10-13 00:37:20,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2021-10-13 00:37:20,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2021-10-13 00:37:20,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 136 states and 162 transitions. [2021-10-13 00:37:20,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:20,740 INFO L681 BuchiCegarLoop]: Abstraction has 136 states and 162 transitions. [2021-10-13 00:37:20,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states and 162 transitions. [2021-10-13 00:37:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 75. [2021-10-13 00:37:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 1.1866666666666668) internal successors, (89), 74 states have internal predecessors, (89), 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) [2021-10-13 00:37:20,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2021-10-13 00:37:20,745 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 89 transitions. [2021-10-13 00:37:20,745 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 89 transitions. [2021-10-13 00:37:20,746 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:37:20,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 89 transitions. [2021-10-13 00:37:20,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:20,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:20,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:20,747 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:20,748 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:20,748 INFO L791 eck$LassoCheckResult]: Stem: 2070#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2038#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2039#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2055#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2072#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2080#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2061#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2062#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2081#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2082#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2057#L509-5 strlen_#res := strlen_~i~0; 2058#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2065#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2066#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2089#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2088#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2086#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2041#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2042#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2056#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2040#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2036#L509-11 strlen_#res := strlen_~i~0; 2037#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2073#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2047#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2048#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2067#L532 assume !strstr_#t~short17; 2052#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2091#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2090#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2078#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2044#L517-3 [2021-10-13 00:37:20,748 INFO L793 eck$LassoCheckResult]: Loop: 2044#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2074#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2043#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2044#L517-3 [2021-10-13 00:37:20,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:20,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1765677085, now seen corresponding path program 2 times [2021-10-13 00:37:20,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:20,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228626911] [2021-10-13 00:37:20,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:20,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:20,772 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:20,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:20,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:20,801 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 3 times [2021-10-13 00:37:20,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:20,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419865361] [2021-10-13 00:37:20,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:20,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:20,809 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:20,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:20,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:20,815 INFO L82 PathProgramCache]: Analyzing trace with hash 821646714, now seen corresponding path program 1 times [2021-10-13 00:37:20,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:20,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647535583] [2021-10-13 00:37:20,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:20,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:20,842 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:20,873 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:23,223 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:37:23,223 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:37:23,223 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:37:23,223 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:37:23,223 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:37:23,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:23,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:37:23,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:37:23,224 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration10_Lasso [2021-10-13 00:37:23,224 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:37:23,224 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:37:23,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:23,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:24,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:37:25,759 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:37:25,760 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:37:25,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,761 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-13 00:37:25,762 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 [2021-10-13 00:37:25,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:25,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:25,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,791 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-13 00:37:25,792 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 [2021-10-13 00:37:25,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:25,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:25,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,821 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-13 00:37:25,822 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 [2021-10-13 00:37:25,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:25,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:25,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,851 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-13 00:37:25,857 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 [2021-10-13 00:37:25,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:25,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:25,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,885 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-13 00:37:25,886 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 [2021-10-13 00:37:25,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:25,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2021-10-13 00:37:25,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,914 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-13 00:37:25,916 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 [2021-10-13 00:37:25,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:25,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2021-10-13 00:37:25,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,944 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-13 00:37:25,945 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 [2021-10-13 00:37:25,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:25,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:25,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:25,972 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:25,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-13 00:37:25,973 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 [2021-10-13 00:37:25,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:25,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:37:25,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:25,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:25,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:25,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:37:25,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:37:25,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:26,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-13 00:37:26,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:26,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:26,002 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:26,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-13 00:37:26,003 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 [2021-10-13 00:37:26,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:26,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:26,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:26,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:26,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:26,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:26,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:26,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:26,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:26,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:26,032 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:26,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-13 00:37:26,033 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 [2021-10-13 00:37:26,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:26,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:26,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:26,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:26,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:26,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:26,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:26,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:26,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:26,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:26,114 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:26,116 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 [2021-10-13 00:37:26,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:26,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:26,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:26,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:26,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:26,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:26,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-13 00:37:26,137 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:37:26,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:26,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:26,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:26,174 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:26,175 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 [2021-10-13 00:37:26,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:37:26,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:37:26,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:37:26,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:37:26,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:37:26,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:37:26,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-13 00:37:26,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:37:26,330 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2021-10-13 00:37:26,330 INFO L444 ModelExtractionUtils]: 41 out of 76 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-10-13 00:37:26,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:37:26,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:26,332 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:37:26,333 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:37:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-10-13 00:37:26,354 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:37:26,354 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:37:26,354 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0.offset, v_rep(select #length ULTIMATE.start_main_~hay~0.base)_1) = -1*ULTIMATE.start_memcmp_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~hay~0.base)_1 Supporting invariants [] [2021-10-13 00:37:26,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:26,732 INFO L297 tatePredicateManager]: 58 out of 60 supporting invariants were superfluous and have been removed [2021-10-13 00:37:26,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:26,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:26,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:37:26,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:26,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:37:26,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:27,030 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 00:37:27,030 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 89 transitions. cyclomatic complexity: 20 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2021-10-13 00:37:27,091 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 89 transitions. cyclomatic complexity: 20. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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) Result 150 states and 179 transitions. Complement of second has 8 states. [2021-10-13 00:37:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:37:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 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) [2021-10-13 00:37:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2021-10-13 00:37:27,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 31 letters. Loop has 3 letters. [2021-10-13 00:37:27,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:27,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 34 letters. Loop has 3 letters. [2021-10-13 00:37:27,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:27,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 41 transitions. Stem has 31 letters. Loop has 6 letters. [2021-10-13 00:37:27,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:37:27,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 179 transitions. [2021-10-13 00:37:27,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:27,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 108 states and 129 transitions. [2021-10-13 00:37:27,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2021-10-13 00:37:27,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2021-10-13 00:37:27,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 129 transitions. [2021-10-13 00:37:27,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:27,101 INFO L681 BuchiCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-10-13 00:37:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 129 transitions. [2021-10-13 00:37:27,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 82. [2021-10-13 00:37:27,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.170731707317073) internal successors, (96), 81 states have internal predecessors, (96), 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) [2021-10-13 00:37:27,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2021-10-13 00:37:27,117 INFO L704 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2021-10-13 00:37:27,117 INFO L587 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2021-10-13 00:37:27,117 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 00:37:27,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2021-10-13 00:37:27,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:27,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:27,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:27,119 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:27,120 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:27,120 INFO L791 eck$LassoCheckResult]: Stem: 2667#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2637#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2638#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2654#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2669#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2677#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2660#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2652#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2653#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2659#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2657#L509-5 strlen_#res := strlen_~i~0; 2658#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2661#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2662#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2691#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2655#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2656#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2645#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2646#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2686#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2687#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2635#L509-11 strlen_#res := strlen_~i~0; 2636#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2670#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2671#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2663#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2664#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2682#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2683#L517-1 assume !(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6; 2699#L517-4 memcmp_#res := 0; 2702#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2701#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2698#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2690#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2675#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2640#L517-3 [2021-10-13 00:37:27,121 INFO L793 eck$LassoCheckResult]: Loop: 2640#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2672#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2639#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2640#L517-3 [2021-10-13 00:37:27,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:27,121 INFO L82 PathProgramCache]: Analyzing trace with hash 191871499, now seen corresponding path program 1 times [2021-10-13 00:37:27,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:27,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869036610] [2021-10-13 00:37:27,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:27,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 00:37:27,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:27,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869036610] [2021-10-13 00:37:27,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869036610] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:37:27,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:37:27,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:37:27,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013888002] [2021-10-13 00:37:27,171 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 4 times [2021-10-13 00:37:27,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:27,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597816858] [2021-10-13 00:37:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:27,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:27,180 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:27,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:27,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:27,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:37:27,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:37:27,311 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. cyclomatic complexity: 21 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-10-13 00:37:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:27,328 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2021-10-13 00:37:27,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:37:27,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 98 transitions. [2021-10-13 00:37:27,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:27,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 80 states and 91 transitions. [2021-10-13 00:37:27,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-13 00:37:27,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-13 00:37:27,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 91 transitions. [2021-10-13 00:37:27,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:27,331 INFO L681 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-10-13 00:37:27,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 91 transitions. [2021-10-13 00:37:27,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-13 00:37:27,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.1375) internal successors, (91), 79 states have internal predecessors, (91), 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) [2021-10-13 00:37:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2021-10-13 00:37:27,335 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-10-13 00:37:27,335 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 91 transitions. [2021-10-13 00:37:27,335 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 00:37:27,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 91 transitions. [2021-10-13 00:37:27,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:27,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:27,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:27,337 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:27,337 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:27,338 INFO L791 eck$LassoCheckResult]: Stem: 2843#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2814#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 2815#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 2831#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2844#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2851#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2852#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2889#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2888#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2887#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2886#L509-5 strlen_#res := strlen_~i~0; 2837#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 2838#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 2839#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2817#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2818#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2832#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2853#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 2891#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 2890#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 2816#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 2812#L509-11 strlen_#res := strlen_~i~0; 2813#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 2845#L529 assume !(0 == strstr_~nl~0 % 4294967296); 2823#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 2824#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2840#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2822#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2875#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2861#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 2859#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 2858#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 2857#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 2856#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 2848#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 2820#L517-3 [2021-10-13 00:37:27,338 INFO L793 eck$LassoCheckResult]: Loop: 2820#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 2846#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 2819#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 2820#L517-3 [2021-10-13 00:37:27,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:27,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1795103955, now seen corresponding path program 1 times [2021-10-13 00:37:27,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:27,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003589383] [2021-10-13 00:37:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:27,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 00:37:27,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:27,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003589383] [2021-10-13 00:37:27,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003589383] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:37:27,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:37:27,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:37:27,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431445632] [2021-10-13 00:37:27,464 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:27,464 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 5 times [2021-10-13 00:37:27,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:27,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458615598] [2021-10-13 00:37:27,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:27,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:27,471 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:27,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:27,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:27,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:37:27,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:37:27,588 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. cyclomatic complexity: 18 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-10-13 00:37:27,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:27,628 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2021-10-13 00:37:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:37:27,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 108 transitions. [2021-10-13 00:37:27,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:27,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 93 states and 104 transitions. [2021-10-13 00:37:27,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-13 00:37:27,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-13 00:37:27,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 104 transitions. [2021-10-13 00:37:27,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:27,631 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 104 transitions. [2021-10-13 00:37:27,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 104 transitions. [2021-10-13 00:37:27,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2021-10-13 00:37:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.1294117647058823) internal successors, (96), 84 states have internal predecessors, (96), 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) [2021-10-13 00:37:27,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2021-10-13 00:37:27,635 INFO L704 BuchiCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-10-13 00:37:27,636 INFO L587 BuchiCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-10-13 00:37:27,636 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 00:37:27,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 96 transitions. [2021-10-13 00:37:27,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:27,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:27,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:27,637 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:27,638 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:27,638 INFO L791 eck$LassoCheckResult]: Stem: 3030#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3003#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3004#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3020#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3033#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3040#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3025#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3018#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3019#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3024#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3022#L509-5 strlen_#res := strlen_~i~0; 3023#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3026#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3027#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3010#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3011#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3021#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3044#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3074#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3073#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3009#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3001#L509-11 strlen_#res := strlen_~i~0; 3002#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3060#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3012#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3013#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3028#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3082#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3080#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3081#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3078#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3079#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3050#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3049#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3048#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3046#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3045#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3038#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3006#L517-3 [2021-10-13 00:37:27,638 INFO L793 eck$LassoCheckResult]: Loop: 3006#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3036#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3005#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3006#L517-3 [2021-10-13 00:37:27,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:27,638 INFO L82 PathProgramCache]: Analyzing trace with hash -2138077336, now seen corresponding path program 1 times [2021-10-13 00:37:27,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:27,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12761571] [2021-10-13 00:37:27,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:27,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 00:37:27,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:27,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12761571] [2021-10-13 00:37:27,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12761571] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:27,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667679657] [2021-10-13 00:37:27,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:27,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:27,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:27,769 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:27,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-10-13 00:37:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:27,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 00:37:27,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 00:37:28,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667679657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:28,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:28,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-13 00:37:28,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128910350] [2021-10-13 00:37:28,216 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:28,216 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 6 times [2021-10-13 00:37:28,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:28,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286689493] [2021-10-13 00:37:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:28,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:28,223 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:28,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:28,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:28,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:37:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:37:28,401 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. cyclomatic complexity: 18 Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-10-13 00:37:28,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:28,549 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2021-10-13 00:37:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:37:28,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 133 states and 150 transitions. [2021-10-13 00:37:28,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 00:37:28,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 133 states to 105 states and 120 transitions. [2021-10-13 00:37:28,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-13 00:37:28,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-13 00:37:28,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 120 transitions. [2021-10-13 00:37:28,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:28,552 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 120 transitions. [2021-10-13 00:37:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 120 transitions. [2021-10-13 00:37:28,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 77. [2021-10-13 00:37:28,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.12987012987013) internal successors, (87), 76 states have internal predecessors, (87), 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) [2021-10-13 00:37:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2021-10-13 00:37:28,555 INFO L704 BuchiCegarLoop]: Abstraction has 77 states and 87 transitions. [2021-10-13 00:37:28,555 INFO L587 BuchiCegarLoop]: Abstraction has 77 states and 87 transitions. [2021-10-13 00:37:28,555 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-13 00:37:28,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 87 transitions. [2021-10-13 00:37:28,556 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:28,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:28,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:28,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:28,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:28,561 INFO L791 eck$LassoCheckResult]: Stem: 3386#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3357#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3358#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3375#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3388#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3395#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3381#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3373#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3374#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3396#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3404#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3403#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3380#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3378#L509-5 strlen_#res := strlen_~i~0; 3379#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3382#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3383#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3400#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3376#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3377#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3365#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3366#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3401#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3402#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3355#L509-11 strlen_#res := strlen_~i~0; 3356#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3389#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3390#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3384#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3385#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3399#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3392#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3361#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3362#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3423#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3419#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3409#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3408#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3406#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3405#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3393#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3360#L517-3 [2021-10-13 00:37:28,561 INFO L793 eck$LassoCheckResult]: Loop: 3360#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3391#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3359#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3360#L517-3 [2021-10-13 00:37:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:28,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1050158307, now seen corresponding path program 2 times [2021-10-13 00:37:28,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:28,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786904640] [2021-10-13 00:37:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:28,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:37:28,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:28,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786904640] [2021-10-13 00:37:28,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786904640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:28,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417074110] [2021-10-13 00:37:28,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:37:28,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:28,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:28,809 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:28,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2021-10-13 00:37:29,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:37:29,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:29,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 00:37:29,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:37:29,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417074110] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:29,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:29,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2021-10-13 00:37:29,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018132199] [2021-10-13 00:37:29,469 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:29,470 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 7 times [2021-10-13 00:37:29,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:29,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816871579] [2021-10-13 00:37:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:29,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:29,476 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:29,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:29,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:29,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 00:37:29,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-10-13 00:37:29,608 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. cyclomatic complexity: 17 Second operand has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:29,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:29,856 INFO L93 Difference]: Finished difference Result 259 states and 296 transitions. [2021-10-13 00:37:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 00:37:29,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 296 transitions. [2021-10-13 00:37:29,858 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 00:37:29,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 238 states and 274 transitions. [2021-10-13 00:37:29,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2021-10-13 00:37:29,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2021-10-13 00:37:29,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 238 states and 274 transitions. [2021-10-13 00:37:29,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:29,861 INFO L681 BuchiCegarLoop]: Abstraction has 238 states and 274 transitions. [2021-10-13 00:37:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states and 274 transitions. [2021-10-13 00:37:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 91. [2021-10-13 00:37:29,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.1318681318681318) internal successors, (103), 90 states have internal predecessors, (103), 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) [2021-10-13 00:37:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2021-10-13 00:37:29,865 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 103 transitions. [2021-10-13 00:37:29,866 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 103 transitions. [2021-10-13 00:37:29,866 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-13 00:37:29,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 103 transitions. [2021-10-13 00:37:29,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:29,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:29,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:29,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:29,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:29,868 INFO L791 eck$LassoCheckResult]: Stem: 3874#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3845#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 3846#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 3864#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3877#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3883#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3884#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3890#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3885#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3868#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3860#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3861#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3867#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3865#L509-5 strlen_#res := strlen_~i~0; 3866#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 3869#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3870#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3898#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 3897#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3895#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 3896#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 3920#L509-11 strlen_#res := strlen_~i~0; 3919#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 3918#L529 assume !(0 == strstr_~nl~0 % 4294967296); 3917#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 3916#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3914#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3913#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3911#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3912#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3910#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3909#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3908#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 3858#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 3859#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3856#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3857#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3907#L532 assume !strstr_#t~short17; 3905#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 3893#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 3892#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 3881#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 3851#L517-3 [2021-10-13 00:37:29,868 INFO L793 eck$LassoCheckResult]: Loop: 3851#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 3879#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 3850#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 3851#L517-3 [2021-10-13 00:37:29,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:29,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1867103268, now seen corresponding path program 1 times [2021-10-13 00:37:29,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:29,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360396278] [2021-10-13 00:37:29,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:29,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 00:37:30,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:30,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360396278] [2021-10-13 00:37:30,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360396278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:30,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365857943] [2021-10-13 00:37:30,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:30,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:30,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:30,085 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:30,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2021-10-13 00:37:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:30,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 00:37:30,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:30,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 00:37:30,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365857943] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:30,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:30,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 15 [2021-10-13 00:37:30,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273423419] [2021-10-13 00:37:30,702 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:37:30,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:30,703 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 8 times [2021-10-13 00:37:30,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:30,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800772874] [2021-10-13 00:37:30,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:30,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:30,711 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:37:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:37:30,721 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:37:30,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 00:37:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:37:30,840 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. cyclomatic complexity: 19 Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 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) [2021-10-13 00:37:31,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:31,027 INFO L93 Difference]: Finished difference Result 195 states and 223 transitions. [2021-10-13 00:37:31,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:37:31,027 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 223 transitions. [2021-10-13 00:37:31,029 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 00:37:31,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 190 states and 218 transitions. [2021-10-13 00:37:31,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2021-10-13 00:37:31,030 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2021-10-13 00:37:31,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 190 states and 218 transitions. [2021-10-13 00:37:31,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:37:31,031 INFO L681 BuchiCegarLoop]: Abstraction has 190 states and 218 transitions. [2021-10-13 00:37:31,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states and 218 transitions. [2021-10-13 00:37:31,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 91. [2021-10-13 00:37:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.120879120879121) internal successors, (102), 90 states have internal predecessors, (102), 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) [2021-10-13 00:37:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2021-10-13 00:37:31,035 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 102 transitions. [2021-10-13 00:37:31,035 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 102 transitions. [2021-10-13 00:37:31,035 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-13 00:37:31,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 102 transitions. [2021-10-13 00:37:31,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:37:31,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:37:31,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:37:31,037 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:37:31,037 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:37:31,037 INFO L791 eck$LassoCheckResult]: Stem: 4310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4280#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 4281#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 4298#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4312#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4319#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4320#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4330#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4321#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4303#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4304#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4327#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4328#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4295#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4296#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4301#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4302#L509-5 strlen_#res := strlen_~i~0; 4305#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4306#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4322#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4323#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4357#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4356#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4283#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4284#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4297#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4282#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4278#L509-11 strlen_#res := strlen_~i~0; 4279#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4313#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4289#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4290#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4309#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4362#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4361#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4287#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4288#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4315#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4316#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4340#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4339#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 4337#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4331#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4317#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4286#L517-3 [2021-10-13 00:37:31,038 INFO L793 eck$LassoCheckResult]: Loop: 4286#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4314#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4285#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4286#L517-3 [2021-10-13 00:37:31,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:31,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1423552120, now seen corresponding path program 3 times [2021-10-13 00:37:31,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:31,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160012201] [2021-10-13 00:37:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:31,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:37:31,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:31,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160012201] [2021-10-13 00:37:31,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160012201] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:31,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688559248] [2021-10-13 00:37:31,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:37:31,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:31,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:31,281 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:31,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2021-10-13 00:37:31,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-13 00:37:31,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:31,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 00:37:31,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 00:38:00,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688559248] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:00,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:00,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2021-10-13 00:38:00,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488787478] [2021-10-13 00:38:00,693 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:38:00,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:00,694 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 9 times [2021-10-13 00:38:00,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:00,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675402488] [2021-10-13 00:38:00,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:00,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:00,700 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:00,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:00,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:00,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:38:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:38:00,863 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. cyclomatic complexity: 18 Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 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) [2021-10-13 00:38:02,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:02,678 INFO L93 Difference]: Finished difference Result 346 states and 397 transitions. [2021-10-13 00:38:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 00:38:02,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 346 states and 397 transitions. [2021-10-13 00:38:02,681 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 21 [2021-10-13 00:38:02,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 346 states to 325 states and 374 transitions. [2021-10-13 00:38:02,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2021-10-13 00:38:02,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2021-10-13 00:38:02,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 374 transitions. [2021-10-13 00:38:02,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:38:02,685 INFO L681 BuchiCegarLoop]: Abstraction has 325 states and 374 transitions. [2021-10-13 00:38:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 374 transitions. [2021-10-13 00:38:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 111. [2021-10-13 00:38:02,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.1261261261261262) internal successors, (125), 110 states have internal predecessors, (125), 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) [2021-10-13 00:38:02,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2021-10-13 00:38:02,690 INFO L704 BuchiCegarLoop]: Abstraction has 111 states and 125 transitions. [2021-10-13 00:38:02,690 INFO L587 BuchiCegarLoop]: Abstraction has 111 states and 125 transitions. [2021-10-13 00:38:02,690 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-13 00:38:02,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 125 transitions. [2021-10-13 00:38:02,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:38:02,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:38:02,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:38:02,692 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:38:02,692 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:38:02,692 INFO L791 eck$LassoCheckResult]: Stem: 4933#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4906#L-1 havoc main_#res;havoc main_#t~nondet19, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~nondet21, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~ret23.base, main_#t~ret23.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~out_len~0, main_~needle~0.base, main_~needle~0.offset;main_~in_len~0 := main_#t~nondet19;havoc main_#t~nondet19; 4907#L541 assume !(main_~in_len~0 < 1);call main_#t~malloc20.base, main_#t~malloc20.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc20.base, main_#t~malloc20.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet21;havoc main_#t~nondet21; 4924#L545 assume !(main_~out_len~0 < 1);call main_#t~malloc22.base, main_#t~malloc22.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~needle~0.base, main_~needle~0.offset := main_#t~malloc22.base, main_#t~malloc22.offset;call write~int(0, main_~needle~0.base, main_~needle~0.offset + (main_~out_len~0 - 1), 1);strstr_#in~haystack.base, strstr_#in~haystack.offset, strstr_#in~needle.base, strstr_#in~needle.offset := main_~hay~0.base, main_~hay~0.offset, main_~needle~0.base, main_~needle~0.offset;havoc strstr_#res.base, strstr_#res.offset;havoc strstr_#t~ret11, strstr_#t~ret12, strstr_#t~mem14, strstr_#t~mem15, strstr_#t~ret16, strstr_#t~short17, strstr_#t~pre18.base, strstr_#t~pre18.offset, strstr_#t~pre13, strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0, strstr_~hl~0, strstr_~i~1;strstr_~haystack.base, strstr_~haystack.offset := strstr_#in~haystack.base, strstr_#in~haystack.offset;strstr_~needle.base, strstr_~needle.offset := strstr_#in~needle.base, strstr_#in~needle.offset;strlen_#in~s.base, strlen_#in~s.offset := strstr_~needle.base, strstr_~needle.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4935#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4942#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4943#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4951#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4944#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4945#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4971#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4969#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4967#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4965#L509-5 strlen_#res := strlen_~i~0; 4963#L510 strstr_#t~ret11 := strlen_#res;strstr_~nl~0 := strstr_#t~ret11;havoc strstr_#t~ret11;strlen_#in~s.base, strlen_#in~s.offset := strstr_~haystack.base, strstr_~haystack.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 4961#L508-2 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 4956#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4957#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4960#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4955#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4954#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4953#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4947#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4909#L509-7 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 4910#L509-9 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 4923#L509-10 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 4908#L509-7 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 4904#L509-11 strlen_#res := strlen_~i~0; 4905#L510-1 strstr_#t~ret12 := strlen_#res;strstr_~hl~0 := strstr_#t~ret12;havoc strstr_#t~ret12;havoc strstr_~i~1; 4936#L529 assume !(0 == strstr_~nl~0 % 4294967296); 4915#L530 assume !(strstr_~nl~0 % 4294967296 > strstr_~hl~0 % 4294967296);strstr_~i~1 := 1 + (strstr_~hl~0 - strstr_~nl~0); 4916#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4932#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 5000#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4999#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4913#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4914#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4938#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4939#L518 assume 0 != memcmp_~r~0;havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#res := memcmp_~r~0; 4978#L523 strstr_#t~ret16 := memcmp_#res;strstr_#t~short17 := 0 == strstr_#t~ret16; 4977#L532-2 assume !strstr_#t~short17;havoc strstr_#t~mem14;havoc strstr_#t~mem15;havoc strstr_#t~ret16;havoc strstr_#t~short17;strstr_#t~pre18.base, strstr_#t~pre18.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;strstr_~haystack.base, strstr_~haystack.offset := strstr_~haystack.base, 1 + strstr_~haystack.offset;havoc strstr_#t~pre18.base, strstr_#t~pre18.offset; 4975#L531-2 strstr_#t~pre13 := strstr_~i~1 - 1;strstr_~i~1 := strstr_~i~1 - 1;havoc strstr_#t~pre13; 4952#L531-3 assume !!(0 != strstr_~i~1 % 4294967296);call strstr_#t~mem14 := read~int(strstr_~haystack.base, strstr_~haystack.offset, 1);call strstr_#t~mem15 := read~int(strstr_~needle.base, strstr_~needle.offset, 1);strstr_#t~short17 := strstr_#t~mem14 == strstr_#t~mem15; 4940#L532 assume strstr_#t~short17;memcmp_#in~dst.base, memcmp_#in~dst.offset, memcmp_#in~src.base, memcmp_#in~src.offset, memcmp_#in~count := strstr_~haystack.base, strstr_~haystack.offset, strstr_~needle.base, strstr_~needle.offset, strstr_~nl~0;havoc memcmp_#res;havoc memcmp_#t~pre5, memcmp_#t~mem7, memcmp_#t~mem8, memcmp_#t~pre9.base, memcmp_#t~pre9.offset, memcmp_#t~pre10.base, memcmp_#t~pre10.offset, memcmp_#t~pre6, memcmp_~dst.base, memcmp_~dst.offset, memcmp_~src.base, memcmp_~src.offset, memcmp_~count, memcmp_~r~0, memcmp_~d~0.base, memcmp_~d~0.offset, memcmp_~s~0.base, memcmp_~s~0.offset;memcmp_~dst.base, memcmp_~dst.offset := memcmp_#in~dst.base, memcmp_#in~dst.offset;memcmp_~src.base, memcmp_~src.offset := memcmp_#in~src.base, memcmp_#in~src.offset;memcmp_~count := memcmp_#in~count;havoc memcmp_~r~0;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~dst.base, memcmp_~dst.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~src.base, memcmp_~src.offset;memcmp_#t~pre5 := 1 + memcmp_~count;memcmp_~count := 1 + memcmp_~count;havoc memcmp_#t~pre5; 4912#L517-3 [2021-10-13 00:38:02,692 INFO L793 eck$LassoCheckResult]: Loop: 4912#L517-3 memcmp_#t~pre6 := memcmp_~count - 1;memcmp_~count := memcmp_~count - 1; 4937#L517-1 assume !!(0 != memcmp_#t~pre6 % 4294967296);havoc memcmp_#t~pre6;call memcmp_#t~mem7 := read~int(memcmp_~d~0.base, memcmp_~d~0.offset, 1);call memcmp_#t~mem8 := read~int(memcmp_~s~0.base, memcmp_~s~0.offset, 1);memcmp_~r~0 := memcmp_#t~mem7 % 256 - memcmp_#t~mem8 % 256; 4911#L518 assume !(0 != memcmp_~r~0);havoc memcmp_#t~mem7;havoc memcmp_#t~mem8;memcmp_#t~pre9.base, memcmp_#t~pre9.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;memcmp_~d~0.base, memcmp_~d~0.offset := memcmp_~d~0.base, 1 + memcmp_~d~0.offset;havoc memcmp_#t~pre9.base, memcmp_#t~pre9.offset;memcmp_#t~pre10.base, memcmp_#t~pre10.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;memcmp_~s~0.base, memcmp_~s~0.offset := memcmp_~s~0.base, 1 + memcmp_~s~0.offset;havoc memcmp_#t~pre10.base, memcmp_#t~pre10.offset; 4912#L517-3 [2021-10-13 00:38:02,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:02,693 INFO L82 PathProgramCache]: Analyzing trace with hash -224601240, now seen corresponding path program 4 times [2021-10-13 00:38:02,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:02,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679454992] [2021-10-13 00:38:02,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:02,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:02,729 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:02,769 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:02,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:02,769 INFO L82 PathProgramCache]: Analyzing trace with hash 111382, now seen corresponding path program 10 times [2021-10-13 00:38:02,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:02,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949021134] [2021-10-13 00:38:02,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:02,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:02,776 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:02,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:02,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:02,781 INFO L82 PathProgramCache]: Analyzing trace with hash 463587919, now seen corresponding path program 5 times [2021-10-13 00:38:02,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:02,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947988417] [2021-10-13 00:38:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:02,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:02,821 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:38:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:38:02,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:38:07,101 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:38:07,101 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:38:07,101 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:38:07,101 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:38:07,102 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:38:07,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:07,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:38:07,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:38:07,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: strstr.i_Iteration17_Lasso [2021-10-13 00:38:07,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:38:07,102 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:38:07,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:08,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:38:09,912 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:38:09,912 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:38:09,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:09,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:09,933 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:09,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-13 00:38:09,934 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 [2021-10-13 00:38:09,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:09,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:09,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:09,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:09,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:09,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:09,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:38:10,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:10,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:10,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:10,014 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:10,022 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 [2021-10-13 00:38:10,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:38:10,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:38:10,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:38:10,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:38:10,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-13 00:38:10,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:38:10,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:38:10,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:38:10,186 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2021-10-13 00:38:10,186 INFO L444 ModelExtractionUtils]: 41 out of 76 variables were initially zero. Simplification set additionally 32 variables to zero. [2021-10-13 00:38:10,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:38:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:10,189 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:38:10,194 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:38:10,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-13 00:38:10,210 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:38:10,211 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:38:10,211 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_memcmp_~d~0.offset, v_rep(select #length ULTIMATE.start_main_~hay~0.base)_2) = -1*ULTIMATE.start_memcmp_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~hay~0.base)_2 Supporting invariants [] [2021-10-13 00:38:10,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:10,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:10,610 INFO L297 tatePredicateManager]: 75 out of 77 supporting invariants were superfluous and have been removed [2021-10-13 00:38:10,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:10,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:38:10,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:10,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:38:10,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:10,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:10,977 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 00:38:10,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:11,032 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 138 states and 158 transitions. Complement of second has 8 states. [2021-10-13 00:38:11,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:38:11,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:11,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-13 00:38:11,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-13 00:38:11,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:11,034 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:38:11,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:11,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:38:11,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:11,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:38:11,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:11,401 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 00:38:11,402 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:11,444 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 138 states and 158 transitions. Complement of second has 8 states. [2021-10-13 00:38:11,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:38:11,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:11,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-13 00:38:11,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-13 00:38:11,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:11,448 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:38:11,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:11,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:38:11,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:11,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:38:11,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:11,833 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 00:38:11,833 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:11,886 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 125 transitions. cyclomatic complexity: 21. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 138 states and 158 transitions. Complement of second has 7 states. [2021-10-13 00:38:11,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:38:11,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:11,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2021-10-13 00:38:11,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 44 letters. Loop has 3 letters. [2021-10-13 00:38:11,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:11,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 47 letters. Loop has 3 letters. [2021-10-13 00:38:11,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:11,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 44 letters. Loop has 6 letters. [2021-10-13 00:38:11,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:38:11,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 158 transitions. [2021-10-13 00:38:11,889 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:38:11,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 0 states and 0 transitions. [2021-10-13 00:38:11,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:38:11,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:38:11,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:38:11,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:38:11,890 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:38:11,890 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:38:11,890 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:38:11,890 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-13 00:38:11,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:38:11,890 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:38:11,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:38:11,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:38:11 BoogieIcfgContainer [2021-10-13 00:38:11,896 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:38:11,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:38:11,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:38:11,897 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:38:11,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:57" (3/4) ... [2021-10-13 00:38:11,900 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:38:11,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:38:11,901 INFO L168 Benchmark]: Toolchain (without parser) took 75375.41 ms. Allocated memory was 130.0 MB in the beginning and 308.3 MB in the end (delta: 178.3 MB). Free memory was 100.8 MB in the beginning and 190.9 MB in the end (delta: -90.0 MB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:11,902 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 130.0 MB. Free memory was 82.8 MB in the beginning and 82.8 MB in the end (delta: 68.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:38:11,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.87 ms. Allocated memory is still 130.0 MB. Free memory was 100.7 MB in the beginning and 95.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:11,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 93.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:11,903 INFO L168 Benchmark]: Boogie Preprocessor took 47.17 ms. Allocated memory is still 130.0 MB. Free memory was 93.4 MB in the beginning and 91.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:11,903 INFO L168 Benchmark]: RCFGBuilder took 449.62 ms. Allocated memory is still 130.0 MB. Free memory was 91.9 MB in the beginning and 78.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:11,904 INFO L168 Benchmark]: BuchiAutomizer took 74311.92 ms. Allocated memory was 130.0 MB in the beginning and 308.3 MB in the end (delta: 178.3 MB). Free memory was 78.8 MB in the beginning and 190.9 MB in the end (delta: -112.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:38:11,904 INFO L168 Benchmark]: Witness Printer took 4.01 ms. Allocated memory is still 308.3 MB. Free memory is still 190.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:38:11,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 130.0 MB. Free memory was 82.8 MB in the beginning and 82.8 MB in the end (delta: 68.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 504.87 ms. Allocated memory is still 130.0 MB. Free memory was 100.7 MB in the beginning and 95.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 93.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.17 ms. Allocated memory is still 130.0 MB. Free memory was 93.4 MB in the beginning and 91.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 449.62 ms. Allocated memory is still 130.0 MB. Free memory was 91.9 MB in the beginning and 78.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 74311.92 ms. Allocated memory was 130.0 MB in the beginning and 308.3 MB in the end (delta: 178.3 MB). Free memory was 78.8 MB in the beginning and 190.9 MB in the end (delta: -112.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.01 ms. Allocated memory is still 308.3 MB. Free memory is still 190.9 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 17 terminating modules (11 trivial, 5 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * s + out_len and consists of 5 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. One deterministic module has affine ranking function -1 * haystack + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * d and consists of 10 locations. One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[hay] and consists of 5 locations. One nondeterministic module has affine ranking function -1 * d + unknown-#length-unknown[hay] and consists of 5 locations. 11 modules have a trivial ranking function, the largest among these consists of 23 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 74.2s and 18 iterations. TraceHistogramMax:4. Analysis of lassos took 65.7s. Construction of modules took 1.9s. Büchi inclusion checks took 6.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 16. Automata minimization 85.4ms AutomataMinimizationTime, 16 MinimizatonAttempts, 641 StatesRemovedByMinimization, 12 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 111 states and ocurred in iteration 16. Nontrivial modules had stage [5, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 619 SDtfs, 1454 SDslu, 2890 SDs, 0 SdLazy, 2279 SolverSat, 232 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1900.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU11 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital306 mio100 ax100 hnf99 lsp88 ukn88 mio100 lsp40 div108 bol100 ite100 ukn100 eq191 hnf86 smp98 dnf156 smp86 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 4 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 28 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! [2021-10-13 00:38:11,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:12,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Ended with exit code 0 [2021-10-13 00:38:12,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2021-10-13 00:38:12,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Ended with exit code 0 [2021-10-13 00:38:12,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:12,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2021-10-13 00:38:13,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6aaa64d2-52f0-48aa-ba3c-5cae969146c2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...