./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg --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 6bebda7974b4ee09f480826bc3895f6f62b6e4c0586920bb97da4d140e226dad ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:49:27,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:49:27,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:49:27,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:49:27,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:49:27,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:49:27,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:49:27,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:49:27,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:49:27,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:49:27,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:49:27,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:49:27,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:49:27,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:49:27,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:49:27,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:49:27,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:49:27,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:49:27,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:49:27,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:49:27,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:49:27,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:49:27,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:49:27,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:49:27,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:49:27,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:49:27,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:49:27,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:49:27,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:49:27,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:49:27,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:49:27,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:49:27,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:49:27,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:49:27,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:49:27,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:49:27,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:49:27,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:49:27,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:49:27,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:49:27,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:49:27,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 08:49:27,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:49:27,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:49:27,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:49:27,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:49:27,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:49:27,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:49:27,225 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:49:27,226 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:49:27,226 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:49:27,226 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:49:27,227 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:49:27,228 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:49:27,228 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:49:27,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:49:27,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:49:27,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:49:27,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:49:27,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:49:27,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:49:27,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:49:27,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:49:27,230 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:49:27,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:49:27,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:49:27,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:49:27,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:49:27,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:49:27,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:49:27,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:49:27,234 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:49:27,234 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_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bebda7974b4ee09f480826bc3895f6f62b6e4c0586920bb97da4d140e226dad [2021-10-28 08:49:27,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:49:27,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:49:27,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:49:27,595 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:49:27,596 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:49:27,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i [2021-10-28 08:49:27,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/data/5e0f0bce9/0ab2f73338c44d5da92dd26ed85fbae6/FLAGe215d5b0c [2021-10-28 08:49:28,211 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:49:28,212 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i [2021-10-28 08:49:28,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/data/5e0f0bce9/0ab2f73338c44d5da92dd26ed85fbae6/FLAGe215d5b0c [2021-10-28 08:49:28,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/data/5e0f0bce9/0ab2f73338c44d5da92dd26ed85fbae6 [2021-10-28 08:49:28,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:49:28,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:49:28,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:49:28,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:49:28,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:49:28,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:49:28" (1/1) ... [2021-10-28 08:49:28,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d285d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:28, skipping insertion in model container [2021-10-28 08:49:28,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:49:28" (1/1) ... [2021-10-28 08:49:28,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:49:28,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:49:28,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:49:28,959 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:49:29,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:49:29,080 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:49:29,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29 WrapperNode [2021-10-28 08:49:29,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:49:29,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:49:29,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:49:29,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:49:29,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:49:29,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:49:29,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:49:29,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:49:29,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:49:29,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:49:29,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:49:29,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:49:29,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (1/1) ... [2021-10-28 08:49:29,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:29,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:29,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:29,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:49:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:49:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:49:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:49:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:49:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:49:29,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:49:29,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:49:29,515 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 08:49:29,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:49:29 BoogieIcfgContainer [2021-10-28 08:49:29,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:49:29,518 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:49:29,518 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:49:29,521 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:49:29,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:49:29,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:49:28" (1/3) ... [2021-10-28 08:49:29,523 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26cd39fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:49:29, skipping insertion in model container [2021-10-28 08:49:29,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:49:29,523 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:49:29" (2/3) ... [2021-10-28 08:49:29,524 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26cd39fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:49:29, skipping insertion in model container [2021-10-28 08:49:29,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:49:29,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:49:29" (3/3) ... [2021-10-28 08:49:29,525 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrcspn_diffterm_alloca.i [2021-10-28 08:49:29,567 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:49:29,567 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:49:29,567 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:49:29,567 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:49:29,567 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:49:29,567 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:49:29,568 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:49:29,568 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:49:29,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:29,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 08:49:29,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:49:29,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:49:29,606 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:49:29,606 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:49:29,607 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:49:29,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:29,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 08:49:29,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:49:29,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:49:29,611 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:49:29,627 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:49:29,633 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 17#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 5#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 9#L369-4true [2021-10-28 08:49:29,634 INFO L793 eck$LassoCheckResult]: Loop: 9#L369-4true call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 16#L369-1true assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 7#L372-5true assume !true; 6#L372-6true call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 18#L374true assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 10#L369-3true cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 9#L369-4true [2021-10-28 08:49:29,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:29,654 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-28 08:49:29,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:29,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217319500] [2021-10-28 08:49:29,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:29,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:29,776 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:29,825 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:29,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2021-10-28 08:49:29,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:29,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762697233] [2021-10-28 08:49:29,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:29,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:29,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:49:29,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762697233] [2021-10-28 08:49:29,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762697233] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:49:29,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:49:29,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:49:29,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458263273] [2021-10-28 08:49:29,884 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:49:29,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:49:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:49:29,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:49:29,902 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:49:29,908 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-10-28 08:49:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:49:29,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-10-28 08:49:29,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 08:49:29,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2021-10-28 08:49:29,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 08:49:29,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 08:49:29,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-10-28 08:49:29,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:49:29,918 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 08:49:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-10-28 08:49:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 08:49:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2021-10-28 08:49:29,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-28 08:49:29,947 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 08:49:29,947 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 08:49:29,948 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:49:29,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-10-28 08:49:29,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 08:49:29,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:49:29,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:49:29,950 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 08:49:29,950 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:49:29,950 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 45#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 52#L382 assume !(main_~length1~0 < 1); 56#L382-2 assume !(main_~length2~0 < 1); 46#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 47#L369-4 [2021-10-28 08:49:29,950 INFO L793 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 53#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 50#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 51#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 55#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 48#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 49#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 54#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 47#L369-4 [2021-10-28 08:49:29,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:29,951 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2021-10-28 08:49:29,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:29,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391748778] [2021-10-28 08:49:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:29,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:30,013 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:30,056 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:30,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:30,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2021-10-28 08:49:30,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:30,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731507396] [2021-10-28 08:49:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:30,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:30,116 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:30,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:30,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:30,138 INFO L85 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2021-10-28 08:49:30,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:30,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244271328] [2021-10-28 08:49:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:30,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:30,201 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:30,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:31,285 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:49:31,286 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:49:31,286 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:49:31,286 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:49:31,286 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:49:31,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:31,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:49:31,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:49:31,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_diffterm_alloca.i_Iteration2_Lasso [2021-10-28 08:49:31,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:49:31,287 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:49:31,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:31,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:32,507 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:49:32,512 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:49:32,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:32,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:32,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:32,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:49:32,540 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 [2021-10-28 08:49:32,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:32,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:49:32,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:32,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:32,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:32,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:49:32,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:49:32,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:32,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 08:49:32,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:32,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:32,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:32,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:49:32,607 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 [2021-10-28 08:49:32,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:32,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:32,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:32,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:32,619 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:32,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:32,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:32,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 08:49:32,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:32,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:32,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:32,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:49:32,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:49:32,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:32,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:49:32,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:32,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:32,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:32,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:49:32,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:49:32,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:32,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:32,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:32,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:32,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:32,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:49:32,693 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 [2021-10-28 08:49:32,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:32,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:32,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:32,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:32,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:32,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:32,735 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:49:32,789 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 08:49:32,789 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. [2021-10-28 08:49:32,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:32,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:32,812 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:32,851 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:49:32,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:49:32,888 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:49:32,888 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:49:32,889 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcspn_~sc1~0.base)_1, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcspn_~sc1~0.base)_1 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [] [2021-10-28 08:49:32,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 08:49:32,992 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-10-28 08:49:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:33,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:49:33,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:33,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:49:33,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:33,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:33,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:33,216 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:49:33,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-28 08:49:33,264 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 21 states and 28 transitions. Complement of second has 4 states. [2021-10-28 08:49:33,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:49:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-28 08:49:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2021-10-28 08:49:33,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2021-10-28 08:49:33,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:49:33,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2021-10-28 08:49:33,270 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:49:33,270 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2021-10-28 08:49:33,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:49:33,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2021-10-28 08:49:33,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:49:33,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2021-10-28 08:49:33,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 08:49:33,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 08:49:33,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2021-10-28 08:49:33,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:49:33,285 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 08:49:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2021-10-28 08:49:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-28 08:49:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2021-10-28 08:49:33,290 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 08:49:33,296 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2021-10-28 08:49:33,296 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:49:33,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2021-10-28 08:49:33,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:49:33,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:49:33,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:49:33,301 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:49:33,302 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:49:33,302 INFO L791 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 174#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 183#L382 assume !(main_~length1~0 < 1); 190#L382-2 assume !(main_~length2~0 < 1); 175#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 176#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 185#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 179#L372-5 [2021-10-28 08:49:33,302 INFO L793 eck$LassoCheckResult]: Loop: 179#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 180#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 188#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, 1 + cstrcspn_#t~post211.offset;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 179#L372-5 [2021-10-28 08:49:33,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:33,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2021-10-28 08:49:33,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:33,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980611209] [2021-10-28 08:49:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:33,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:33,333 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:33,375 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:33,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:33,376 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2021-10-28 08:49:33,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:33,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704693397] [2021-10-28 08:49:33,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:33,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:33,395 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:33,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2021-10-28 08:49:33,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:33,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115360217] [2021-10-28 08:49:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:33,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:33,441 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:33,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:34,348 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:49:34,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:49:34,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:49:34,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:49:34,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:49:34,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:34,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:49:34,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:49:34,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_diffterm_alloca.i_Iteration3_Lasso [2021-10-28 08:49:34,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:49:34,349 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:49:34,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:34,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:49:35,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:49:35,407 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:49:35,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,409 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,426 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 [2021-10-28 08:49:35,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:49:35,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:49:35,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:49:35,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:49:35,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:35,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,496 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 [2021-10-28 08:49:35,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:35,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:35,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:49:35,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 08:49:35,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,551 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:49:35,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:49:35,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:49:35,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:49:35,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:49:35,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:35,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,636 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:49:35,643 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 [2021-10-28 08:49:35,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:49:35,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:49:35,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:49:35,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:35,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,715 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,721 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 [2021-10-28 08:49:35,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:49:35,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:49:35,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:49:35,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:49:35,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:35,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,785 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,791 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 [2021-10-28 08:49:35,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:35,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:35,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:49:35,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:35,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,851 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:49:35,857 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 [2021-10-28 08:49:35,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:35,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:35,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:35,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,928 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 [2021-10-28 08:49:35,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:49:35,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:35,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:35,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:35,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:35,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:35,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:35,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:35,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:35,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:35,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:35,988 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:35,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:49:35,999 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 [2021-10-28 08:49:36,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:36,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:36,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:36,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:36,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:36,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:36,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:36,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:36,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:36,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:36,063 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:36,069 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 [2021-10-28 08:49:36,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:36,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:36,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:36,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:36,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:36,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:36,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:49:36,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:36,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:36,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:36,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:36,125 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:36,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:49:36,126 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 [2021-10-28 08:49:36,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:36,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:36,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:36,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:36,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:36,145 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:36,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:36,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:36,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:36,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:36,216 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:36,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:49:36,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:36,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:36,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:36,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:36,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:36,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:36,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:49:36,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:36,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:36,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:36,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:36,296 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:36,301 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 [2021-10-28 08:49:36,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:36,311 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 08:49:36,311 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2021-10-28 08:49:36,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:36,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:49:36,389 INFO L401 nArgumentSynthesizer]: We have 140 Motzkin's Theorem applications. [2021-10-28 08:49:36,389 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2021-10-28 08:49:36,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:49:36,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 08:49:36,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:36,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:36,561 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:36,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:49:36,564 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 [2021-10-28 08:49:36,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:49:36,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:49:36,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:49:36,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:49:36,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:49:36,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:49:36,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:49:36,643 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 08:49:36,643 INFO L444 ModelExtractionUtils]: 32 out of 49 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-10-28 08:49:36,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:49:36,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:36,647 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:49:36,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:49:36,652 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:49:36,673 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:49:36,674 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:49:36,674 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2021-10-28 08:49:36,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:36,760 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2021-10-28 08:49:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:36,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:49:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:36,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:49:36,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:36,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:49:36,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:36,933 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 [2021-10-28 08:49:36,933 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:36,980 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 57 transitions. Complement of second has 6 states. [2021-10-28 08:49:36,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:49:36,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:49:36,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 08:49:36,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-28 08:49:36,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:49:36,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-28 08:49:36,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:49:36,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-28 08:49:36,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:49:36,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2021-10-28 08:49:36,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:49:36,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2021-10-28 08:49:36,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 08:49:36,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 08:49:36,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2021-10-28 08:49:36,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:49:36,985 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-28 08:49:36,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2021-10-28 08:49:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-10-28 08:49:36,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 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) [2021-10-28 08:49:36,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2021-10-28 08:49:36,988 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-28 08:49:36,988 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2021-10-28 08:49:36,988 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:49:36,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2021-10-28 08:49:36,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:49:36,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:49:36,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:49:36,990 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:49:36,990 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:49:36,990 INFO L791 eck$LassoCheckResult]: Stem: 353#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 354#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 363#L382 assume !(main_~length1~0 < 1); 372#L382-2 assume !(main_~length2~0 < 1); 355#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 356#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 364#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 373#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 376#L372-1 assume !cstrcspn_#t~short210; 374#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 357#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 358#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 368#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 365#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 367#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 359#L372-5 [2021-10-28 08:49:36,991 INFO L793 eck$LassoCheckResult]: Loop: 359#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 360#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 369#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, 1 + cstrcspn_#t~post211.offset;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 359#L372-5 [2021-10-28 08:49:36,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:36,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2021-10-28 08:49:36,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:36,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925939273] [2021-10-28 08:49:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:36,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:37,006 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:37,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:37,026 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2021-10-28 08:49:37,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:37,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600845423] [2021-10-28 08:49:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:37,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:37,031 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:49:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:49:37,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:49:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:49:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2021-10-28 08:49:37,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:49:37,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160335729] [2021-10-28 08:49:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:37,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:49:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:37,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:49:37,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:49:37,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160335729] [2021-10-28 08:49:37,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160335729] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:49:37,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787084772] [2021-10-28 08:49:37,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:49:37,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:49:37,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:49:37,177 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:49:37,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 08:49:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:49:37,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 08:49:37,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:49:37,324 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-10-28 08:49:37,325 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 1 case distinctions, treesize of input 36 treesize of output 21 [2021-10-28 08:50:20,565 WARN L207 SmtUtils]: Spent 10.72 s on a formula simplification that was a NOOP. DAG size: 21 [2021-10-28 08:50:37,841 WARN L207 SmtUtils]: Spent 11.64 s on a formula simplification that was a NOOP. DAG size: 15 [2021-10-28 08:51:05,994 WARN L207 SmtUtils]: Spent 12.04 s on a formula simplification that was a NOOP. DAG size: 15 [2021-10-28 08:51:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:06,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787084772] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:51:06,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:51:06,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-10-28 08:51:06,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962907980] [2021-10-28 08:51:06,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:51:06,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 08:51:06,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=115, Unknown=8, NotChecked=0, Total=156 [2021-10-28 08:51:06,194 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 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) [2021-10-28 08:51:31,698 WARN L207 SmtUtils]: Spent 23.18 s on a formula simplification. DAG size of input: 31 DAG size of output: 22 [2021-10-28 08:51:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:51:36,698 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2021-10-28 08:51:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:51:36,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2021-10-28 08:51:36,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:51:36,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2021-10-28 08:51:36,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 08:51:36,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 08:51:36,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2021-10-28 08:51:36,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:51:36,705 INFO L681 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2021-10-28 08:51:36,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2021-10-28 08:51:36,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2021-10-28 08:51:36,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 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) [2021-10-28 08:51:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-28 08:51:36,711 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 08:51:36,711 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 08:51:36,711 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:51:36,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-10-28 08:51:36,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 08:51:36,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:36,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:36,714 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:36,714 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:51:36,714 INFO L791 eck$LassoCheckResult]: Stem: 516#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 517#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 524#L382 assume !(main_~length1~0 < 1); 533#L382-2 assume !(main_~length2~0 < 1); 514#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem207, cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset, cstrcspn_#t~mem208, cstrcspn_#t~mem209, cstrcspn_#t~short210, cstrcspn_#t~mem212, cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset, cstrcspn_#t~mem206, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 515#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 525#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 538#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 531#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 532#L372-3 assume !cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210; 518#L372-6 call cstrcspn_#t~mem212 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 519#L374 assume !(cstrcspn_#t~mem212 == cstrcspn_~c~0);havoc cstrcspn_#t~mem212; 529#L369-3 cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post205.base, 1 + cstrcspn_#t~post205.offset;havoc cstrcspn_#t~post205.base, cstrcspn_#t~post205.offset; 526#L369-4 call cstrcspn_#t~mem206 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 528#L369-1 assume !!(49 != cstrcspn_#t~mem206);havoc cstrcspn_#t~mem206;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem207 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem207;havoc cstrcspn_#t~mem207; 520#L372-5 [2021-10-28 08:51:36,714 INFO L793 eck$LassoCheckResult]: Loop: 520#L372-5 call cstrcspn_#t~mem208 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := 49 != cstrcspn_#t~mem208; 521#L372-1 assume cstrcspn_#t~short210;call cstrcspn_#t~mem209 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short210 := cstrcspn_#t~mem209 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 530#L372-3 assume !!cstrcspn_#t~short210;havoc cstrcspn_#t~mem208;havoc cstrcspn_#t~mem209;havoc cstrcspn_#t~short210;cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post211.base, 1 + cstrcspn_#t~post211.offset;havoc cstrcspn_#t~post211.base, cstrcspn_#t~post211.offset; 520#L372-5 [2021-10-28 08:51:36,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:36,715 INFO L85 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2021-10-28 08:51:36,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:36,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862827945] [2021-10-28 08:51:36,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:36,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:36,737 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:36,763 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:36,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2021-10-28 08:51:36,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:36,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868665734] [2021-10-28 08:51:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:36,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:36,771 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:36,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:36,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:36,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2021-10-28 08:51:36,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:36,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611133632] [2021-10-28 08:51:36,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:36,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:36,800 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:36,828 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:38,489 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:51:38,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:51:38,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:51:38,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:51:38,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:51:38,490 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:38,490 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:51:38,490 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:51:38,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_diffterm_alloca.i_Iteration5_Lasso [2021-10-28 08:51:38,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:51:38,491 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:51:38,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:38,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:38,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:38,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:38,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:38,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:38,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:38,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:39,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:51:41,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:51:41,461 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:51:41,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,492 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:51:41,494 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 [2021-10-28 08:51:41,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:51:41,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:51:41,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:51:41,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 08:51:41,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,544 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:51:41,546 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 [2021-10-28 08:51:41,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:51:41,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:51:41,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:51:41,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-28 08:51:41,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,582 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:51:41,586 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 [2021-10-28 08:51:41,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:51:41,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:51:41,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:51:41,597 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 08:51:41,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,624 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 08:51:41,633 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 [2021-10-28 08:51:41,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:51:41,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:51:41,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 08:51:41,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,699 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:51:41,704 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 [2021-10-28 08:51:41,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:51:41,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:51:41,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:51:41,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 08:51:41,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,744 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,746 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 [2021-10-28 08:51:41,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:51:41,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:51:41,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:51:41,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:51:41,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 08:51:41,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,783 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 08:51:41,785 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 [2021-10-28 08:51:41,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:51:41,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:51:41,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:51:41,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:41,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,868 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,870 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 [2021-10-28 08:51:41,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:51:41,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:51:41,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 08:51:41,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:41,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,920 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 08:51:41,924 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 [2021-10-28 08:51:41,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:51:41,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:51:41,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:41,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 08:51:41,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:41,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:41,966 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:41,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 08:51:41,968 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 [2021-10-28 08:51:41,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:41,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:41,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:41,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:41,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:51:41,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:51:41,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:42,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 08:51:42,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:42,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:42,023 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:42,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 08:51:42,025 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 [2021-10-28 08:51:42,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:42,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:42,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:42,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:42,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:51:42,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:51:42,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:51:42,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:42,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:42,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:42,064 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:42,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 08:51:42,065 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 [2021-10-28 08:51:42,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:51:42,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:51:42,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:51:42,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:51:42,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:51:42,098 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:51:42,135 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:51:42,185 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-28 08:51:42,186 INFO L444 ModelExtractionUtils]: 39 out of 55 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-28 08:51:42,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:42,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:42,190 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:42,191 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:51:42,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 08:51:42,211 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 08:51:42,212 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:51:42,212 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcspn_~s2.base)_1, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcspn_~s2.base)_1 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2021-10-28 08:51:42,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:42,420 INFO L297 tatePredicateManager]: 26 out of 28 supporting invariants were superfluous and have been removed [2021-10-28 08:51:42,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:42,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:51:42,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:51:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:42,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:51:42,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:51:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:42,683 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 [2021-10-28 08:51:42,683 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-28 08:51:42,752 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 46 states and 58 transitions. Complement of second has 6 states. [2021-10-28 08:51:42,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:51:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-28 08:51:42,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 08:51:42,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 08:51:42,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:51:42,775 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:51:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:42,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:42,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:51:42,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:51:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:42,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:51:42,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:51:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:43,046 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 [2021-10-28 08:51:43,046 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-28 08:51:43,101 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 46 states and 58 transitions. Complement of second has 6 states. [2021-10-28 08:51:43,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:51:43,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-28 08:51:43,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 08:51:43,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 08:51:43,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:51:43,105 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:51:43,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:43,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:51:43,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:51:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:43,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:51:43,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:51:43,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:51:43,365 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 [2021-10-28 08:51:43,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-28 08:51:43,428 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 45 states and 60 transitions. Complement of second has 5 states. [2021-10-28 08:51:43,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:51:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-10-28 08:51:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2021-10-28 08:51:43,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-28 08:51:43,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:51:43,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-28 08:51:43,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:51:43,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-28 08:51:43,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:51:43,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2021-10-28 08:51:43,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:51:43,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2021-10-28 08:51:43,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:51:43,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:51:43,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:51:43,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:51:43,446 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:51:43,446 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:51:43,446 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:51:43,446 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 08:51:43,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:51:43,447 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:51:43,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:51:43,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:51:43 BoogieIcfgContainer [2021-10-28 08:51:43,456 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:51:43,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:51:43,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:51:43,457 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:51:43,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:49:29" (3/4) ... [2021-10-28 08:51:43,465 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:51:43,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:51:43,467 INFO L168 Benchmark]: Toolchain (without parser) took 134934.23 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 52.5 MB in the beginning and 63.8 MB in the end (delta: -11.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:43,468 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 69.9 MB in the beginning and 69.9 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:51:43,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.01 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.3 MB in the beginning and 76.3 MB in the end (delta: -24.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:43,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.33 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:43,470 INFO L168 Benchmark]: Boogie Preprocessor took 28.75 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 72.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:43,470 INFO L168 Benchmark]: RCFGBuilder took 328.81 ms. Allocated memory is still 109.1 MB. Free memory was 72.8 MB in the beginning and 61.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:43,471 INFO L168 Benchmark]: BuchiAutomizer took 133938.60 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 60.9 MB in the beginning and 63.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:51:43,471 INFO L168 Benchmark]: Witness Printer took 9.02 ms. Allocated memory is still 132.1 MB. Free memory is still 63.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:51:43,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 69.9 MB in the beginning and 69.9 MB in the end (delta: 43.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 547.01 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.3 MB in the beginning and 76.3 MB in the end (delta: -24.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.33 ms. Allocated memory is still 109.1 MB. Free memory was 76.3 MB in the beginning and 74.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.75 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 72.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 328.81 ms. Allocated memory is still 109.1 MB. Free memory was 72.8 MB in the beginning and 61.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 133938.60 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 60.9 MB in the beginning and 63.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 9.02 ms. Allocated memory is still 132.1 MB. Free memory is still 63.8 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * sc1 + unknown-#length-unknown[sc1] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + -1 * s and consists of 4 locations. One nondeterministic module has affine ranking function -1 * s + unknown-#length-unknown[s2] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 133.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 101.6s. Construction of modules took 0.2s. Büchi inclusion checks took 31.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 126 SDslu, 108 SDs, 0 SdLazy, 165 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital270 mio100 ax100 hnf100 lsp106 ukn82 mio100 lsp32 div129 bol100 ite100 ukn100 eq169 hnf78 smp91 dnf1045 smp33 tf100 neg94 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 243ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 7 SupportingInvariants: 14 MotzkinApplications: 140 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! [2021-10-28 08:51:43,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:51:43,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc8523a2-dc84-45c7-99a0-7bc86ff98d58/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...