./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/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_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/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 32bit --witnessprinter.graph.data.programhash f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:33:51,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:33:51,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:33:51,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:33:51,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:33:51,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:33:51,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:33:51,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:33:51,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:33:51,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:33:51,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:33:51,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:33:51,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:33:51,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:33:51,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:33:51,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:33:51,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:33:51,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:33:51,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:33:51,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:33:51,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:33:51,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:33:51,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:33:51,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:33:51,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:33:51,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:33:51,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:33:51,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:33:51,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:33:51,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:33:51,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:33:51,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:33:51,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:33:51,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:33:51,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:33:51,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:33:51,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:33:51,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:33:51,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:33:51,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:33:51,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:33:51,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:33:51,171 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:33:51,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:33:51,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:33:51,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:33:51,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:33:51,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:33:51,179 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:33:51,180 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:33:51,180 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:33:51,181 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:33:51,182 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:33:51,183 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:33:51,183 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:33:51,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:33:51,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:33:51,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:33:51,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:33:51,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:33:51,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:33:51,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:33:51,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:33:51,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:33:51,186 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:33:51,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:33:51,187 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:33:51,187 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:33:51,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:33:51,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:33:51,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:33:51,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:33:51,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:33:51,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:33:51,193 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:33:51,194 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_68f6ea7f-47ff-43c8-83f7-09112ff28951/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b1141c3157e34a4974729c197a93a4b99ad75fc020122df5d99d43bcc85e27 [2021-10-28 09:33:51,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:33:51,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:33:51,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:33:51,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:33:51,626 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:33:51,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2021-10-28 09:33:51,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/data/080f563ea/4fa627c938e94b34b0ecb9a84325386f/FLAG671865494 [2021-10-28 09:33:52,430 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:33:52,431 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/sv-benchmarks/c/list-ext-properties/test-0232_1-2.i [2021-10-28 09:33:52,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/data/080f563ea/4fa627c938e94b34b0ecb9a84325386f/FLAG671865494 [2021-10-28 09:33:52,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/data/080f563ea/4fa627c938e94b34b0ecb9a84325386f [2021-10-28 09:33:52,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:33:52,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:33:52,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:33:52,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:33:52,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:33:52,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:33:52" (1/1) ... [2021-10-28 09:33:52,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2e5780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:52, skipping insertion in model container [2021-10-28 09:33:52,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:33:52" (1/1) ... [2021-10-28 09:33:52,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:33:52,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:33:53,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:33:53,227 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:33:53,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:33:53,366 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:33:53,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53 WrapperNode [2021-10-28 09:33:53,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:33:53,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:33:53,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:33:53,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:33:53,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:33:53,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:33:53,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:33:53,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:33:53,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:33:53,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:33:53,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:33:53,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:33:53,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (1/1) ... [2021-10-28 09:33:53,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:33:53,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:33:53,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:33:53,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:33:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:33:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:33:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:33:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:33:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:33:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:33:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:33:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:33:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:33:54,201 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:33:54,202 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-28 09:33:54,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:33:54 BoogieIcfgContainer [2021-10-28 09:33:54,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:33:54,206 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:33:54,206 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:33:54,211 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:33:54,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:33:54,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:33:52" (1/3) ... [2021-10-28 09:33:54,214 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4af1c2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:33:54, skipping insertion in model container [2021-10-28 09:33:54,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:33:54,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:33:53" (2/3) ... [2021-10-28 09:33:54,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4af1c2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:33:54, skipping insertion in model container [2021-10-28 09:33:54,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:33:54,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:33:54" (3/3) ... [2021-10-28 09:33:54,217 INFO L389 chiAutomizerObserver]: Analyzing ICFG test-0232_1-2.i [2021-10-28 09:33:54,293 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:33:54,293 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:33:54,294 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:33:54,294 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:33:54,294 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:33:54,294 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:33:54,294 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:33:54,295 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:33:54,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:54,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 09:33:54,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:54,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:54,339 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:33:54,340 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:33:54,340 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:33:54,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:54,342 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 09:33:54,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:54,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:54,343 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:33:54,344 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:33:54,352 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 14#L543-3true [2021-10-28 09:33:54,353 INFO L793 eck$LassoCheckResult]: Loop: 14#L543-3true append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 5#L534true assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 12#L534-2true call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 7#L529true main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 11#L543-1true assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 14#L543-3true [2021-10-28 09:33:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:54,360 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:33:54,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:54,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167633446] [2021-10-28 09:33:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:54,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:54,527 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:54,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:54,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:54,582 INFO L85 PathProgramCache]: Analyzing trace with hash 34451375, now seen corresponding path program 1 times [2021-10-28 09:33:54,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:54,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067172375] [2021-10-28 09:33:54,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:54,584 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:54,632 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:54,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:54,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1805890861, now seen corresponding path program 1 times [2021-10-28 09:33:54,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:54,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397987792] [2021-10-28 09:33:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:54,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:33:54,982 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 09:33:54,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:33:54,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397987792] [2021-10-28 09:33:54,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397987792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:33:54,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:33:54,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:33:54,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297400212] [2021-10-28 09:33:57,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:33:57,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:33:57,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:33:57,594 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:33:57,695 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-10-28 09:33:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:33:57,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2021-10-28 09:33:57,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:33:57,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 16 transitions. [2021-10-28 09:33:57,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 09:33:57,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 09:33:57,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2021-10-28 09:33:57,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:33:57,723 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 09:33:57,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2021-10-28 09:33:57,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2021-10-28 09:33:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:33:57,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-28 09:33:57,770 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-28 09:33:57,770 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-28 09:33:57,770 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:33:57,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-10-28 09:33:57,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-28 09:33:57,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:33:57,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:33:57,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 09:33:57,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 09:33:57,773 INFO L791 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 47#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 51#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 48#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 44#L534-2 [2021-10-28 09:33:57,782 INFO L793 eck$LassoCheckResult]: Loop: 44#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 45#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 49#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 53#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 54#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 44#L534-2 [2021-10-28 09:33:57,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:57,786 INFO L85 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2021-10-28 09:33:57,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:57,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169538719] [2021-10-28 09:33:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:57,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:57,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:57,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:57,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:57,861 INFO L85 PathProgramCache]: Analyzing trace with hash 41102165, now seen corresponding path program 2 times [2021-10-28 09:33:57,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:57,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231244043] [2021-10-28 09:33:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:57,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:57,890 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:57,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:33:57,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:33:57,926 INFO L85 PathProgramCache]: Analyzing trace with hash 351588334, now seen corresponding path program 1 times [2021-10-28 09:33:57,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:33:57,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732906187] [2021-10-28 09:33:57,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:33:57,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:33:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:58,047 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:33:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:33:58,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:02,341 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:34:02,342 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:34:02,342 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:34:02,342 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:34:02,342 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:34:02,343 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:02,343 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:34:02,343 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:34:02,343 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-2.i_Iteration2_Lasso [2021-10-28 09:34:02,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:34:02,344 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:34:02,387 INFO 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 09:34:02,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:02,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:04,595 INFO 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 09:34:04,600 INFO 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 09:34:04,603 INFO 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 09:34:04,605 INFO 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 09:34:04,607 INFO 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 09:34:04,609 INFO 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 09:34:04,611 INFO 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 09:34:04,613 INFO 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 09:34:04,615 INFO 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 09:34:04,618 INFO 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 09:34:04,620 INFO 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 09:34:04,622 INFO 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 09:34:04,624 INFO 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 09:34:04,626 INFO 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 09:34:04,629 INFO 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 09:34:04,656 INFO 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 09:34:04,659 INFO 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 09:34:04,662 INFO 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 09:34:04,665 INFO 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 09:34:04,668 INFO 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 09:34:04,671 INFO 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 09:34:04,675 INFO 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 09:34:04,678 INFO 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 09:34:04,681 INFO 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 09:34:04,685 INFO 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 09:34:04,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:04,692 INFO 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 09:34:04,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:04,697 INFO 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 09:34:04,700 INFO 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 09:34:04,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:04,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:04,708 INFO 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 09:34:04,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:04,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:34:04,717 INFO 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 09:34:10,796 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:34:10,802 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:34:10,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:10,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:10,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:34:10,813 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 09:34:10,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:10,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:10,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:10,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:10,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:10,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:10,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:10,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:10,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 09:34:10,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:10,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:10,866 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:10,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:34:10,872 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 09:34:10,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:10,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:10,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:10,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:10,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:10,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:10,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:10,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:10,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:10,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:10,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:10,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:34:10,965 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 09:34:10,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:10,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:10,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:10,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:10,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:10,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,032 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:34:11,038 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 09:34:11,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 09:34:11,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,102 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:34:11,107 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 09:34:11,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,121 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,201 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,206 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 09:34:11,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:34:11,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,302 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 09:34:11,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:11,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:11,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:11,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:34:11,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 09:34:11,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,364 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:34:11,369 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 09:34:11,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,465 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:11,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:34:11,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,557 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,564 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 09:34:11,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:11,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:11,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:11,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:34:11,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,629 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,644 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 09:34:11,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:34:11,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:11,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:11,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:11,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,683 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:34:11,688 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 09:34:11,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:11,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:11,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:11,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,745 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:34:11,749 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 09:34:11,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:11,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:11,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:11,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,793 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:34:11,795 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 09:34:11,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-28 09:34:11,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,847 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:34:11,855 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 09:34:11,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-28 09:34:11,909 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,911 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:34:11,918 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 09:34:11,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:11,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:11,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:11,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:11,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:11,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:11,983 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:11,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:34:11,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:11,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:11,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:11,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:11,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:11,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:11,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:11,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:12,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:12,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:12,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:12,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:12,035 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:12,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:34:12,042 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 09:34:12,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:12,054 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 09:34:12,054 INFO L204 nArgumentSynthesizer]: 8 loop disjuncts [2021-10-28 09:34:12,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:13,570 INFO L401 nArgumentSynthesizer]: We have 208 Motzkin's Theorem applications. [2021-10-28 09:34:13,570 INFO L402 nArgumentSynthesizer]: A total of 16 supporting invariants were added. [2021-10-28 09:34:16,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 09:34:16,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,810 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:34:16,814 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 09:34:16,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,853 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:34:16,856 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 09:34:16,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:16,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:16,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:16,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:16,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:16,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:16,953 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:16,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:16,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:16,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:16,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:16,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:16,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:16,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:16,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:16,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:34:16,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:17,028 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,033 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:17,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:34:17,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:17,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,109 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:34:17,110 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 09:34:17,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,121 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:17,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:17,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:17,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,152 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:34:17,154 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 09:34:17,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 09:34:17,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,200 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,201 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 09:34:17,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:34:17,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-28 09:34:17,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,242 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:34:17,247 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 09:34:17,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 09:34:17,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,286 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,289 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 09:34:17,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:34:17,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 09:34:17,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,342 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:34:17,345 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 09:34:17,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 09:34:17,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,387 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:34:17,397 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 09:34:17,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:17,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,436 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:34:17,439 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 09:34:17,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 09:34:17,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,479 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:34:17,481 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 09:34:17,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:17,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,569 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,577 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 09:34:17,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:17,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:17,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:34:17,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 09:34:17,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,623 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:34:17,625 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 09:34:17,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 09:34:17,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,680 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:34:17,683 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 09:34:17,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:17,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,724 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:34:17,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:34:17,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:34:17,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:34:17,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:34:17,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:34:17,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 09:34:17,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,767 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:34:17,772 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 09:34:17,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:34:17,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:34:17,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:34:17,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:34:17,784 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:34:17,784 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:34:17,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:34:17,836 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 09:34:17,836 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 4 variables to zero. [2021-10-28 09:34:17,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:34:17,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:17,868 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:34:17,933 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:34:17,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:34:17,966 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:34:17,966 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:34:17,967 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~c~0) = -2*~c~0 + 39 Supporting invariants [] [2021-10-28 09:34:18,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:18,115 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-28 09:34:18,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:18,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:34:18,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:18,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:34:18,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:18,385 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 09:34:18,390 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:34:18,391 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:18,447 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 26 transitions. Complement of second has 6 states. [2021-10-28 09:34:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:34:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:18,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 09:34:18,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 5 letters. [2021-10-28 09:34:18,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:18,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 5 letters. [2021-10-28 09:34:18,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:18,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 10 letters. [2021-10-28 09:34:18,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:34:18,457 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2021-10-28 09:34:18,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:18,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 21 transitions. [2021-10-28 09:34:18,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 09:34:18,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 09:34:18,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-28 09:34:18,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:18,467 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-28 09:34:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-28 09:34:18,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-10-28 09:34:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-28 09:34:18,474 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 09:34:18,474 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-28 09:34:18,474 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:34:18,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-28 09:34:18,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:18,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:18,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:18,480 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:18,480 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:34:18,481 INFO L791 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 174#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 181#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 175#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 176#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 170#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 178#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 182#L543-4 assume !(main_~length~0 > 0); 180#L554-1 [2021-10-28 09:34:18,481 INFO L793 eck$LassoCheckResult]: Loop: 180#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 180#L554-1 [2021-10-28 09:34:18,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,482 INFO L85 PathProgramCache]: Analyzing trace with hash 149888852, now seen corresponding path program 1 times [2021-10-28 09:34:18,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911602089] [2021-10-28 09:34:18,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:18,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:18,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911602089] [2021-10-28 09:34:18,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911602089] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:18,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:18,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:34:18,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913367486] [2021-10-28 09:34:18,585 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:34:18,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,585 INFO L85 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2021-10-28 09:34:18,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268543718] [2021-10-28 09:34:18,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,603 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,611 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:18,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:18,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:34:18,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:34:18,852 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:18,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:18,873 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-10-28 09:34:18,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:34:18,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-10-28 09:34:18,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:18,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. [2021-10-28 09:34:18,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 09:34:18,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 09:34:18,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2021-10-28 09:34:18,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:18,876 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-10-28 09:34:18,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2021-10-28 09:34:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-28 09:34:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 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 09:34:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-10-28 09:34:18,879 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 09:34:18,879 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 09:34:18,879 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:34:18,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-10-28 09:34:18,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:18,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:18,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:18,881 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:18,881 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:34:18,881 INFO L791 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 213#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 220#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 214#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 215#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 209#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 217#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 221#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 219#L554-1 [2021-10-28 09:34:18,881 INFO L793 eck$LassoCheckResult]: Loop: 219#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 219#L554-1 [2021-10-28 09:34:18,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,882 INFO L85 PathProgramCache]: Analyzing trace with hash 149888850, now seen corresponding path program 1 times [2021-10-28 09:34:18,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237380931] [2021-10-28 09:34:18,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,917 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 2 times [2021-10-28 09:34:18,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36135583] [2021-10-28 09:34:18,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,970 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:18,982 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:18,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:18,983 INFO L85 PathProgramCache]: Analyzing trace with hash 351587092, now seen corresponding path program 1 times [2021-10-28 09:34:18,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:18,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864360917] [2021-10-28 09:34:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:18,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:19,077 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 09:34:19,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:19,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864360917] [2021-10-28 09:34:19,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864360917] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:34:19,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:34:19,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:34:19,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620035456] [2021-10-28 09:34:19,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:34:19,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:34:19,294 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:19,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:19,317 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2021-10-28 09:34:19,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:34:19,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-10-28 09:34:19,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:19,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 29 transitions. [2021-10-28 09:34:19,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-10-28 09:34:19,321 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 09:34:19,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 29 transitions. [2021-10-28 09:34:19,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:19,321 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-10-28 09:34:19,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 29 transitions. [2021-10-28 09:34:19,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2021-10-28 09:34:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:19,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-10-28 09:34:19,324 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 09:34:19,324 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-28 09:34:19,324 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:34:19,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2021-10-28 09:34:19,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:19,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:19,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:19,326 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 09:34:19,326 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:34:19,326 INFO L791 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 264#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 272#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 265#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 260#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 261#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 270#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 274#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 266#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 267#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 268#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 269#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 273#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 271#L554-1 [2021-10-28 09:34:19,327 INFO L793 eck$LassoCheckResult]: Loop: 271#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 271#L554-1 [2021-10-28 09:34:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:19,327 INFO L85 PathProgramCache]: Analyzing trace with hash -315524230, now seen corresponding path program 1 times [2021-10-28 09:34:19,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:19,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472592970] [2021-10-28 09:34:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:19,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:19,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:34:19,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472592970] [2021-10-28 09:34:19,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472592970] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:19,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729983451] [2021-10-28 09:34:19,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:19,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:34:19,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:34:19,414 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:34:19,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 09:34:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:34:19,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:34:19,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:34:19,695 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-10-28 09:34:19,696 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 31 [2021-10-28 09:34:19,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2021-10-28 09:34:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:34:19,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729983451] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:34:19,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:34:19,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2021-10-28 09:34:19,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354529685] [2021-10-28 09:34:19,787 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:34:19,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:19,788 INFO L85 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 3 times [2021-10-28 09:34:19,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:19,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382711684] [2021-10-28 09:34:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:19,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,802 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:19,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:19,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:34:20,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:34:20,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:34:20,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:34:20,116 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:20,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:34:20,201 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-10-28 09:34:20,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:34:20,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2021-10-28 09:34:20,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:20,203 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2021-10-28 09:34:20,203 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 09:34:20,203 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 09:34:20,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2021-10-28 09:34:20,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:34:20,204 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-28 09:34:20,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2021-10-28 09:34:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-28 09:34:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:34:20,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-28 09:34:20,206 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-28 09:34:20,206 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-28 09:34:20,206 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:34:20,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2021-10-28 09:34:20,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:34:20,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:34:20,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:34:20,208 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:34:20,208 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:34:20,208 INFO L791 eck$LassoCheckResult]: Stem: 345#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(16);~c~0 := 0; 346#L-1 havoc main_#res;havoc main_#t~post14, main_#t~nondet13, main_#t~mem15.base, main_#t~mem15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~post20, main_~next~0.base, main_~next~0.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~post24, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.allocOnStack(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 353#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 347#L534 assume !(append_#t~mem8.base != 0 || append_#t~mem8.offset != 0);call append_#t~malloc11.base, append_#t~malloc11.offset := #Ultimate.allocOnHeap(8);append_#t~ite12.base, append_#t~ite12.offset := append_#t~malloc11.base, append_#t~malloc11.offset; 348#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 344#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 351#L543-1 assume !!(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 355#L543-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post5, append_#t~malloc6.base, append_#t~malloc6.offset, append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem8.base, append_#t~mem8.offset, append_#t~ite12.base, append_#t~ite12.offset, append_#t~mem9.base, append_#t~mem9.offset, append_#t~mem10.base, append_#t~mem10.offset, append_#t~malloc11.base, append_#t~malloc11.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post5 := ~c~0;~c~0 := 1 + append_#t~post5;havoc append_#t~post5;call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.allocOnHeap(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc6.base, append_#t~malloc6.offset;havoc append_#t~malloc6.base, append_#t~malloc6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem7.base, append_#t~mem7.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem7.base, append_#t~mem7.offset;call append_#t~mem8.base, append_#t~mem8.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 349#L534 assume append_#t~mem8.base != 0 || append_#t~mem8.offset != 0;call append_#t~mem9.base, append_#t~mem9.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem10.base, append_#t~mem10.offset := read~$Pointer$(append_#t~mem9.base, 4 + append_#t~mem9.offset, 4);append_#t~ite12.base, append_#t~ite12.offset := append_#t~mem10.base, append_#t~mem10.offset; 341#L534-2 call write~$Pointer$(append_#t~ite12.base, append_#t~ite12.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem8.base, append_#t~mem8.offset;havoc append_#t~ite12.base, append_#t~ite12.offset;havoc append_#t~mem9.base, append_#t~mem9.offset;havoc append_#t~mem10.base, append_#t~mem10.offset;havoc append_#t~malloc11.base, append_#t~malloc11.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 342#L529 main_#t~post14 := main_~length~0;main_~length~0 := 1 + main_#t~post14;havoc main_#t~post14; 350#L543-1 assume !(0 != main_#t~nondet13 && ~c~0 < 20);havoc main_#t~nondet13; 354#L543-4 assume main_~length~0 > 0;call main_#t~mem15.base, main_#t~mem15.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_#t~mem15.base, main_#t~mem15.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem15.base, main_#t~mem15.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_#t~mem17.base, 4 + main_#t~mem17.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem18.base, main_#t~mem18.offset;call main_#t~mem19.base, main_#t~mem19.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem19.base, main_#t~mem19.offset);havoc main_#t~mem19.base, main_#t~mem19.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post20 := main_~length~0;main_~length~0 := main_#t~post20 - 1;havoc main_#t~post20; 352#L554-1 [2021-10-28 09:34:20,208 INFO L793 eck$LassoCheckResult]: Loop: 352#L554-1 assume !!(main_~length~0 > 0);call main_#t~mem21.base, main_#t~mem21.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem22.base, main_#t~mem22.offset := read~$Pointer$(main_#t~mem21.base, main_#t~mem21.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem22.base, main_#t~mem22.offset;havoc main_#t~mem21.base, main_#t~mem21.offset;havoc main_#t~mem22.base, main_#t~mem22.offset;call main_#t~mem23.base, main_#t~mem23.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem23.base, main_#t~mem23.offset);havoc main_#t~mem23.base, main_#t~mem23.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post24 := main_~length~0;main_~length~0 := main_#t~post24 - 1;havoc main_#t~post24; 352#L554-1 [2021-10-28 09:34:20,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:20,209 INFO L85 PathProgramCache]: Analyzing trace with hash -317371272, now seen corresponding path program 1 times [2021-10-28 09:34:20,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:20,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137875357] [2021-10-28 09:34:20,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:20,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,266 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:20,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:20,326 INFO L85 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 4 times [2021-10-28 09:34:20,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:20,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241256753] [2021-10-28 09:34:20,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:20,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,333 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,339 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:34:20,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:34:20,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1248574802, now seen corresponding path program 1 times [2021-10-28 09:34:20,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:34:20,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617460932] [2021-10-28 09:34:20,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:34:20,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:34:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,415 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:34:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:34:20,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:35:04,585 WARN L207 SmtUtils]: Spent 43.87 s on a formula simplification. DAG size of input: 392 DAG size of output: 321 [2021-10-28 09:35:19,241 WARN L207 SmtUtils]: Spent 5.15 s on a formula simplification that was a NOOP. DAG size: 207 [2021-10-28 09:35:19,246 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:35:19,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:35:19,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:35:19,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:35:19,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:35:19,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:35:19,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:35:19,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:35:19,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: test-0232_1-2.i_Iteration6_Lasso [2021-10-28 09:35:19,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:35:19,247 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:35:19,256 INFO 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 09:35:19,260 INFO 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 09:35:19,263 INFO 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 09:35:20,876 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-28 09:35:20,882 INFO L168 Benchmark]: Toolchain (without parser) took 88196.38 ms. Allocated memory was 90.2 MB in the beginning and 224.4 MB in the end (delta: 134.2 MB). Free memory was 55.2 MB in the beginning and 109.8 MB in the end (delta: -54.6 MB). Peak memory consumption was 140.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:35:20,882 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:35:20,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.65 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 60.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:35:20,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.90 ms. Allocated memory is still 90.2 MB. Free memory was 60.0 MB in the beginning and 58.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:35:20,884 INFO L168 Benchmark]: Boogie Preprocessor took 77.00 ms. Allocated memory is still 90.2 MB. Free memory was 58.2 MB in the beginning and 56.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:35:20,884 INFO L168 Benchmark]: RCFGBuilder took 642.09 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 43.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:35:20,885 INFO L168 Benchmark]: BuchiAutomizer took 86672.01 ms. Allocated memory was 90.2 MB in the beginning and 224.4 MB in the end (delta: 134.2 MB). Free memory was 43.6 MB in the beginning and 109.8 MB in the end (delta: -66.3 MB). Peak memory consumption was 130.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:35:20,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 62.9 MB in the beginning and 62.9 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 682.65 ms. Allocated memory is still 90.2 MB. Free memory was 55.0 MB in the beginning and 60.0 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.90 ms. Allocated memory is still 90.2 MB. Free memory was 60.0 MB in the beginning and 58.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.00 ms. Allocated memory is still 90.2 MB. Free memory was 58.2 MB in the beginning and 56.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 642.09 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 43.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 86672.01 ms. Allocated memory was 90.2 MB in the beginning and 224.4 MB in the end (delta: 134.2 MB). Free memory was 43.6 MB in the beginning and 109.8 MB in the end (delta: -66.3 MB). Peak memory consumption was 130.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-28 09:35:20,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-28 09:35:21,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68f6ea7f-47ff-43c8-83f7-09112ff28951/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...