./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:15:07,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:15:07,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:15:07,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:15:07,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:15:07,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:15:07,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:15:07,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:15:07,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:15:07,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:15:07,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:15:07,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:15:07,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:15:07,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:15:07,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:15:07,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:15:07,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:15:07,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:15:07,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:15:07,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:15:07,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:15:07,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:15:07,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:15:07,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:15:07,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:15:07,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:15:07,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:15:07,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:15:07,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:15:07,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:15:07,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:15:07,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:15:07,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:15:07,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:15:07,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:15:07,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:15:07,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:15:07,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:15:07,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:15:07,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:15:07,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:15:07,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-02 23:15:07,299 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:15:07,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:15:07,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:15:07,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:15:07,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:15:07,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:15:07,304 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:15:07,304 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 23:15:07,304 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 23:15:07,305 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 23:15:07,306 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 23:15:07,306 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 23:15:07,306 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 23:15:07,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:15:07,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:15:07,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:15:07,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:15:07,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 23:15:07,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 23:15:07,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 23:15:07,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:15:07,308 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 23:15:07,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:15:07,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 23:15:07,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:15:07,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:15:07,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:15:07,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:15:07,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:15:07,311 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 23:15:07,312 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_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 [2021-11-02 23:15:07,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:15:07,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:15:07,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:15:07,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:15:07,632 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:15:07,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-11-02 23:15:07,688 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/data/859c5376b/8b62214e437f4666a62c9755b5bbed76/FLAG1d21f061f [2021-11-02 23:15:08,093 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:15:08,094 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-11-02 23:15:08,099 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/data/859c5376b/8b62214e437f4666a62c9755b5bbed76/FLAG1d21f061f [2021-11-02 23:15:08,509 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/data/859c5376b/8b62214e437f4666a62c9755b5bbed76 [2021-11-02 23:15:08,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:15:08,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:15:08,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:08,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:15:08,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:15:08,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d8b002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08, skipping insertion in model container [2021-11-02 23:15:08,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:15:08,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:15:08,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:08,740 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:15:08,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:08,767 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:15:08,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08 WrapperNode [2021-11-02 23:15:08,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:08,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:15:08,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:15:08,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:15:08,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:15:08,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:15:08,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:15:08,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:15:08,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:15:08,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:15:08,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:15:08,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:15:08,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (1/1) ... [2021-11-02 23:15:08,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:08,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:08,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:08,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 23:15:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:15:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:15:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:15:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:15:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:15:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:15:09,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:15:09,121 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-02 23:15:09,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:09 BoogieIcfgContainer [2021-11-02 23:15:09,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:15:09,125 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 23:15:09,125 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 23:15:09,128 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 23:15:09,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:15:09,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 11:15:08" (1/3) ... [2021-11-02 23:15:09,131 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52bffedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:15:09, skipping insertion in model container [2021-11-02 23:15:09,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:15:09,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:08" (2/3) ... [2021-11-02 23:15:09,131 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52bffedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:15:09, skipping insertion in model container [2021-11-02 23:15:09,132 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:15:09,132 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:09" (3/3) ... [2021-11-02 23:15:09,133 INFO L389 chiAutomizerObserver]: Analyzing ICFG 4BitCounterPointer.c [2021-11-02 23:15:09,177 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 23:15:09,177 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 23:15:09,177 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 23:15:09,178 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 23:15:09,178 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 23:15:09,178 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 23:15:09,178 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 23:15:09,178 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 23:15:09,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:09,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 23:15:09,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:09,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:09,207 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 23:15:09,207 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 23:15:09,208 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 23:15:09,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:09,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 23:15:09,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:09,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:09,210 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 23:15:09,210 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 23:15:09,215 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 6#L24-2true [2021-11-02 23:15:09,216 INFO L793 eck$LassoCheckResult]: Loop: 6#L24-2true call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 9#L15-1true assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 3#L16true assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 6#L24-2true [2021-11-02 23:15:09,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:09,220 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-02 23:15:09,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:09,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583238644] [2021-11-02 23:15:09,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:09,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:09,364 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:09,437 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:09,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:09,443 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-11-02 23:15:09,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:09,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31210543] [2021-11-02 23:15:09,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:09,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:09,465 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:09,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:09,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-11-02 23:15:09,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:09,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915468839] [2021-11-02 23:15:09,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:09,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:09,578 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:09,610 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:11,425 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:15:11,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:15:11,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:15:11,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:15:11,436 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:15:11,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:11,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:15:11,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:15:11,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration1_Lasso [2021-11-02 23:15:11,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:15:11,438 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:15:11,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:11,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:11,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:11,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:11,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:11,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:11,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:11,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:12,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:12,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:12,631 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:15:12,641 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:15:12,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:12,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:12,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:12,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:12,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:12,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:15:12,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:12,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:12,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:12,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 23:15:12,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:15:12,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:15:12,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:12,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-02 23:15:12,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:12,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:12,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:12,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 23:15:12,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:12,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:12,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:12,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:12,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:12,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:12,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:12,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:12,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:12,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:12,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:12,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:12,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 23:15:12,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:12,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:12,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:12,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:12,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:12,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:12,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:12,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:12,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-02 23:15:12,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:12,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:12,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:12,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 23:15:12,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:12,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:12,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:15:12,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:12,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:12,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:12,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:15:12,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:15:12,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:12,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:12,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:12,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:12,870 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:12,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 23:15:12,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:12,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:12,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:12,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:12,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:12,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:12,886 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:12,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:12,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:12,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:12,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:12,910 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:12,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 23:15:12,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:12,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:12,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:12,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:12,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:12,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:12,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:12,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:12,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:12,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:12,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:12,983 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:12,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:15:13,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:15:13,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:15:13,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 23:15:13,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,044 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 23:15:13,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,075 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,142 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 23:15:13,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 23:15:13,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,301 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,302 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 23:15:13,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,331 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,364 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 23:15:13,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,418 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 23:15:13,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,460 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 23:15:13,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,546 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 23:15:13,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,618 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 23:15:13,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,660 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 23:15:13,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,735 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 23:15:13,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,808 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,829 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,829 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 23:15:13,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:13,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:13,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,887 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:13,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:13,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:13,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:13,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:13,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:13,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:13,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-02 23:15:13,927 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:15:13,954 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-02 23:15:13,954 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-11-02 23:15:13,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:13,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:13,958 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:13,995 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:15:14,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-02 23:15:14,013 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-02 23:15:14,013 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:15:14,014 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1 + 1 Supporting invariants [] [2021-11-02 23:15:14,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:14,301 INFO L297 tatePredicateManager]: 40 out of 40 supporting invariants were superfluous and have been removed [2021-11-02 23:15:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:14,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:15:14,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:14,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 23:15:14,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:14,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:14,445 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 23:15:14,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:14,460 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:14,508 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 8 states. [2021-11-02 23:15:14,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-02 23:15:14,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:14,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-11-02 23:15:14,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-02 23:15:14,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:14,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-02 23:15:14,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:14,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-02 23:15:14,514 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:14,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-11-02 23:15:14,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 23:15:14,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 13 states and 18 transitions. [2021-11-02 23:15:14,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-11-02 23:15:14,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-02 23:15:14,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-11-02 23:15:14,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:14,522 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-11-02 23:15:14,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-11-02 23:15:14,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-02 23:15:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) 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) [2021-11-02 23:15:14,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-11-02 23:15:14,549 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-11-02 23:15:14,549 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-11-02 23:15:14,549 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 23:15:14,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-11-02 23:15:14,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 23:15:14,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:14,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:14,550 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-02 23:15:14,550 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 23:15:14,551 INFO L791 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 248#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 253#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 252#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 243#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-11-02 23:15:14,551 INFO L793 eck$LassoCheckResult]: Loop: 244#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 249#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 250#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 255#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-11-02 23:15:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:14,551 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-11-02 23:15:14,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:14,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795867935] [2021-11-02 23:15:14,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:14,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:14,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:14,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:14,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795867935] [2021-11-02 23:15:14,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795867935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:15:14,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:15:14,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:15:14,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997142516] [2021-11-02 23:15:14,654 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 23:15:14,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:14,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 1 times [2021-11-02 23:15:14,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:14,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267005127] [2021-11-02 23:15:14,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:14,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:14,662 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:14,670 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:14,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:14,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:15:14,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:15:14,838 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:14,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:14,888 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-11-02 23:15:14,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:15:14,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-11-02 23:15:14,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 23:15:14,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 19 transitions. [2021-11-02 23:15:14,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-02 23:15:14,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-02 23:15:14,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-11-02 23:15:14,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:14,895 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-02 23:15:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-11-02 23:15:14,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-11-02 23:15:14,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:14,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-11-02 23:15:14,899 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-02 23:15:14,899 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-02 23:15:14,899 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 23:15:14,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-11-02 23:15:14,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-11-02 23:15:14,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:14,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:14,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-11-02 23:15:14,904 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 23:15:14,905 INFO L791 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 288#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 289#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 284#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 285#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 290#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 282#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-11-02 23:15:14,905 INFO L793 eck$LassoCheckResult]: Loop: 283#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 291#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 293#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 294#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-11-02 23:15:14,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 1 times [2021-11-02 23:15:14,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:14,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702702280] [2021-11-02 23:15:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:14,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:14,969 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:15,015 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:15,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 2 times [2021-11-02 23:15:15,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:15,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330037854] [2021-11-02 23:15:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:15,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:15,027 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:15,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:15,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:15,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1467212285, now seen corresponding path program 1 times [2021-11-02 23:15:15,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:15,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697618138] [2021-11-02 23:15:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:15,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:15,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:15,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697618138] [2021-11-02 23:15:15,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697618138] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:15,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865560342] [2021-11-02 23:15:15,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:15,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:15,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:15,129 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:15:15,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-02 23:15:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:15,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 23:15:15,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:15,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2021-11-02 23:15:15,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:15:15,319 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-02 23:15:15,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-11-02 23:15:15,444 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-02 23:15:15,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2021-11-02 23:15:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 23:15:15,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865560342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:15,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:15:15,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2021-11-02 23:15:15,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886039199] [2021-11-02 23:15:15,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 23:15:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-02 23:15:15,600 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:15,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:15,739 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-11-02 23:15:15,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 23:15:15,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-11-02 23:15:15,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:15,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2021-11-02 23:15:15,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-02 23:15:15,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-02 23:15:15,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2021-11-02 23:15:15,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:15,742 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-11-02 23:15:15,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2021-11-02 23:15:15,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-11-02 23:15:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-02 23:15:15,744 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-02 23:15:15,744 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-02 23:15:15,744 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 23:15:15,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-11-02 23:15:15,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:15,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:15,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:15,748 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-11-02 23:15:15,748 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-02 23:15:15,749 INFO L791 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 371#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 376#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 373#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 368#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 369#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 374#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 380#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-11-02 23:15:15,749 INFO L793 eck$LassoCheckResult]: Loop: 377#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 379#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 367#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 372#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 381#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-11-02 23:15:15,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 2 times [2021-11-02 23:15:15,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:15,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312497664] [2021-11-02 23:15:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:15,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:15,792 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:15,839 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:15,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash 49698504, now seen corresponding path program 1 times [2021-11-02 23:15:15,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:15,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478799767] [2021-11-02 23:15:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:15,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:15,857 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:15,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:15,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:15,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1758681084, now seen corresponding path program 1 times [2021-11-02 23:15:15,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:15,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978523182] [2021-11-02 23:15:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:15,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:16,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:16,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978523182] [2021-11-02 23:15:16,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978523182] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:16,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983150922] [2021-11-02 23:15:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:16,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:16,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:16,046 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:15:16,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-02 23:15:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:16,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-02 23:15:16,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:16,145 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-02 23:15:16,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-11-02 23:15:16,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:15:16,297 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-02 23:15:16,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-02 23:15:16,376 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-11-02 23:15:16,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 44 [2021-11-02 23:15:16,743 INFO L354 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2021-11-02 23:15:16,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 41 [2021-11-02 23:15:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-02 23:15:16,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983150922] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:16,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:15:16,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-11-02 23:15:16,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115127701] [2021-11-02 23:15:16,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:15:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:15:16,987 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:23,272 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-11-02 23:15:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:15:23,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2021-11-02 23:15:23,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-11-02 23:15:23,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 25 transitions. [2021-11-02 23:15:23,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-02 23:15:23,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-02 23:15:23,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2021-11-02 23:15:23,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:23,275 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-11-02 23:15:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2021-11-02 23:15:23,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2021-11-02 23:15:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:23,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-02 23:15:23,277 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-02 23:15:23,277 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-02 23:15:23,277 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-02 23:15:23,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-11-02 23:15:23,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:23,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:23,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:23,279 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-11-02 23:15:23,279 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-02 23:15:23,279 INFO L791 eck$LassoCheckResult]: Stem: 472#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 473#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 478#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 475#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 470#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 471#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 476#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 482#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-11-02 23:15:23,279 INFO L793 eck$LassoCheckResult]: Loop: 479#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 481#L24 assume !(0 == main_#t~mem7);havoc main_#t~mem7;call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(1, main_~x3~0.base, main_~x3~0.offset, 4); 469#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 474#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 483#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-11-02 23:15:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:23,280 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 3 times [2021-11-02 23:15:23,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:23,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052652984] [2021-11-02 23:15:23,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:23,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,294 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,309 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:23,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:23,310 INFO L85 PathProgramCache]: Analyzing trace with hash 49758086, now seen corresponding path program 1 times [2021-11-02 23:15:23,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:23,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910941073] [2021-11-02 23:15:23,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:23,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:23,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:23,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910941073] [2021-11-02 23:15:23,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910941073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:15:23,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:15:23,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:15:23,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645696497] [2021-11-02 23:15:23,330 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 23:15:23,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:23,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:15:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:15:23,331 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:23,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:23,356 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-11-02 23:15:23,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:15:23,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-11-02 23:15:23,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:23,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 19 transitions. [2021-11-02 23:15:23,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-11-02 23:15:23,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-02 23:15:23,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2021-11-02 23:15:23,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:23,359 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-02 23:15:23,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2021-11-02 23:15:23,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-02 23:15:23,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 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) [2021-11-02 23:15:23,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-02 23:15:23,361 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-02 23:15:23,361 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-02 23:15:23,361 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-02 23:15:23,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-11-02 23:15:23,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:23,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:23,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:23,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-11-02 23:15:23,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2021-11-02 23:15:23,363 INFO L791 eck$LassoCheckResult]: Stem: 515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 516#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 521#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 518#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 513#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 514#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 519#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 525#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-11-02 23:15:23,363 INFO L793 eck$LassoCheckResult]: Loop: 522#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 523#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 526#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 511#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 512#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 517#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 520#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-11-02 23:15:23,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:23,363 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 4 times [2021-11-02 23:15:23,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:23,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684157598] [2021-11-02 23:15:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:23,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,376 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,392 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:23,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1770012235, now seen corresponding path program 1 times [2021-11-02 23:15:23,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:23,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970608418] [2021-11-02 23:15:23,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:23,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,400 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:23,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash -161041423, now seen corresponding path program 2 times [2021-11-02 23:15:23,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:23,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300065485] [2021-11-02 23:15:23,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:23,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,423 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:23,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:24,914 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:15:24,914 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:15:24,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:15:24,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:15:24,914 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:15:24,914 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:24,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:15:24,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:15:24,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration6_Lasso [2021-11-02 23:15:24,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:15:24,915 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:15:24,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:24,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:25,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:25,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:25,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:25,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:25,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:25,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:25,890 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:15:25,891 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:15:25,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:25,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:25,895 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:25,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-02 23:15:25,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:25,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:25,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:25,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:25,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:25,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:25,905 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:25,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:25,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:25,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:25,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:25,928 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:25,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-02 23:15:25,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:25,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:25,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:25,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:25,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:25,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:25,939 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:25,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:25,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-11-02 23:15:25,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:25,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:25,989 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:25,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-02 23:15:25,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:25,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:25,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:25,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:25,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,038 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-02 23:15:26,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,123 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-02 23:15:26,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-11-02 23:15:26,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,182 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-02 23:15:26,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,196 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,216 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-02 23:15:26,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,255 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-02 23:15:26,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,354 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-02 23:15:26,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,434 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-02 23:15:26,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,502 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-02 23:15:26,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,547 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-02 23:15:26,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,564 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:26,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,587 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-02 23:15:26,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:26,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:26,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:26,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:26,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:26,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:26,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:26,603 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:15:26,614 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-02 23:15:26,614 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-11-02 23:15:26,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:26,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:26,616 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:26,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-02 23:15:26,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:15:26,626 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-02 23:15:26,627 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:15:26,627 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 + 1 Supporting invariants [3*ULTIMATE.start_main_#t~mem6 - 2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 >= 0] [2021-11-02 23:15:26,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:26,776 INFO L297 tatePredicateManager]: 37 out of 38 supporting invariants were superfluous and have been removed [2021-11-02 23:15:26,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:26,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-02 23:15:26,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:26,912 INFO L354 Elim1Store]: treesize reduction 157, result has 12.3 percent of original size [2021-11-02 23:15:26,912 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 3 case distinctions, treesize of input 143 treesize of output 48 [2021-11-02 23:15:26,930 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-02 23:15:26,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2021-11-02 23:15:27,189 INFO L354 Elim1Store]: treesize reduction 96, result has 19.3 percent of original size [2021-11-02 23:15:27,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 48 treesize of output 57 [2021-11-02 23:15:27,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:27,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 23:15:27,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:27,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 25 [2021-11-02 23:15:27,638 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-11-02 23:15:27,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-11-02 23:15:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:27,751 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 4 loop predicates [2021-11-02 23:15:27,751 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:27,896 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 26 transitions. Complement of second has 7 states. [2021-11-02 23:15:27,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 0 non-accepting loop states 2 accepting loop states [2021-11-02 23:15:27,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2021-11-02 23:15:27,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 8 letters. Loop has 7 letters. [2021-11-02 23:15:27,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:27,898 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-02 23:15:27,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:27,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-02 23:15:27,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:27,991 INFO L354 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2021-11-02 23:15:27,991 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 3 case distinctions, treesize of input 123 treesize of output 29 [2021-11-02 23:15:28,147 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-11-02 23:15:28,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2021-11-02 23:15:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:28,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 23:15:28,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:28,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 25 [2021-11-02 23:15:28,543 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-11-02 23:15:28,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-11-02 23:15:28,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:28,643 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 4 loop predicates [2021-11-02 23:15:28,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:28,920 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 17 states. [2021-11-02 23:15:28,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 6 stem states 4 non-accepting loop states 1 accepting loop states [2021-11-02 23:15:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2021-11-02 23:15:28,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 7 letters. [2021-11-02 23:15:28,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:28,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 15 letters. Loop has 7 letters. [2021-11-02 23:15:28,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:28,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 14 letters. [2021-11-02 23:15:28,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:28,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-11-02 23:15:28,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:28,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 30 states and 36 transitions. [2021-11-02 23:15:28,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-11-02 23:15:28,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-02 23:15:28,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2021-11-02 23:15:28,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:28,929 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-11-02 23:15:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2021-11-02 23:15:28,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-11-02 23:15:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-11-02 23:15:28,931 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-11-02 23:15:28,931 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-11-02 23:15:28,931 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-02 23:15:28,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-11-02 23:15:28,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:28,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:28,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:28,933 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-11-02 23:15:28,933 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-11-02 23:15:28,933 INFO L791 eck$LassoCheckResult]: Stem: 918#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 919#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 920#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 921#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 916#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 917#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 922#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 935#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 934#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-11-02 23:15:28,933 INFO L793 eck$LassoCheckResult]: Loop: 926#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 925#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 923#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 914#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 915#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 937#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 936#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 924#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-11-02 23:15:28,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:28,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1269321585, now seen corresponding path program 1 times [2021-11-02 23:15:28,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:28,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814629613] [2021-11-02 23:15:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:28,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:29,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:29,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:29,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814629613] [2021-11-02 23:15:29,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814629613] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:29,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184515174] [2021-11-02 23:15:29,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:29,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:29,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:29,068 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:15:29,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-02 23:15:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:29,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-02 23:15:29,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:29,273 INFO L354 Elim1Store]: treesize reduction 133, result has 14.2 percent of original size [2021-11-02 23:15:29,274 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 3 case distinctions, treesize of input 135 treesize of output 40 [2021-11-02 23:15:29,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 42 treesize of output 40 [2021-11-02 23:15:29,471 INFO L354 Elim1Store]: treesize reduction 100, result has 27.5 percent of original size [2021-11-02 23:15:29,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 61 [2021-11-02 23:15:29,798 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-02 23:15:29,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 42 [2021-11-02 23:15:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:29,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184515174] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:29,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:15:29,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-02 23:15:29,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518869012] [2021-11-02 23:15:29,812 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 23:15:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 1 times [2021-11-02 23:15:29,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:29,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967997705] [2021-11-02 23:15:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:29,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:29,825 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:29,835 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:30,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:30,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 23:15:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-02 23:15:30,215 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 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) [2021-11-02 23:15:30,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:30,571 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-02 23:15:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:15:30,572 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2021-11-02 23:15:30,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:30,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 33 transitions. [2021-11-02 23:15:30,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-02 23:15:30,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-11-02 23:15:30,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2021-11-02 23:15:30,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:30,574 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-02 23:15:30,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2021-11-02 23:15:30,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2021-11-02 23:15:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-11-02 23:15:30,576 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-11-02 23:15:30,576 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-11-02 23:15:30,576 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-02 23:15:30,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2021-11-02 23:15:30,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-02 23:15:30,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:30,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:30,578 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-11-02 23:15:30,578 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-11-02 23:15:30,578 INFO L791 eck$LassoCheckResult]: Stem: 1019#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1020#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1021#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1022#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1017#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1018#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1036#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1033#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1027#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1023#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1024#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1026#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1038#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1035#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1032#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1028#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-11-02 23:15:30,578 INFO L793 eck$LassoCheckResult]: Loop: 1029#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1030#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1025#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1015#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1016#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1037#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1034#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1031#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-11-02 23:15:30,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:30,579 INFO L85 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 1 times [2021-11-02 23:15:30,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:30,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820013852] [2021-11-02 23:15:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:30,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:30,598 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:30,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:30,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 2 times [2021-11-02 23:15:30,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:30,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414865599] [2021-11-02 23:15:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:30,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:30,629 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:30,637 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:30,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1710122080, now seen corresponding path program 1 times [2021-11-02 23:15:30,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:30,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306705395] [2021-11-02 23:15:30,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:30,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:30,764 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-02 23:15:30,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:15:30,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306705395] [2021-11-02 23:15:30,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306705395] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:30,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375998180] [2021-11-02 23:15:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:30,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:15:30,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:30,766 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:15:30,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-02 23:15:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:30,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-02 23:15:30,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:30,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 12 [2021-11-02 23:15:31,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:15:31,112 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-11-02 23:15:31,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-11-02 23:15:31,166 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-11-02 23:15:31,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 40 [2021-11-02 23:15:31,763 INFO L354 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2021-11-02 23:15:31,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 55 [2021-11-02 23:15:31,862 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-02 23:15:31,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2021-11-02 23:15:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-02 23:15:31,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375998180] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:15:31,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:15:31,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-11-02 23:15:31,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499076542] [2021-11-02 23:15:32,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:15:32,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 23:15:32,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-02 23:15:32,222 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:15:33,228 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-11-02 23:15:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 23:15:33,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2021-11-02 23:15:33,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-11-02 23:15:33,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 38 transitions. [2021-11-02 23:15:33,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-11-02 23:15:33,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-11-02 23:15:33,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-11-02 23:15:33,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:15:33,230 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-11-02 23:15:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-11-02 23:15:33,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-11-02 23:15:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:33,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-11-02 23:15:33,233 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-11-02 23:15:33,233 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-11-02 23:15:33,233 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-02 23:15:33,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2021-11-02 23:15:33,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-11-02 23:15:33,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:15:33,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:15:33,234 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-11-02 23:15:33,234 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 2, 2, 1, 1, 1] [2021-11-02 23:15:33,234 INFO L791 eck$LassoCheckResult]: Stem: 1172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1173#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1174#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1175#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1170#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1171#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1176#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1196#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1195#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1181#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1193#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1191#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1190#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1188#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1185#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1180#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-11-02 23:15:33,234 INFO L793 eck$LassoCheckResult]: Loop: 1182#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1183#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1177#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1168#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1169#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1198#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1197#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1178#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1179#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1194#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1192#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1187#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1189#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1186#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1184#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-11-02 23:15:33,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:33,235 INFO L85 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 2 times [2021-11-02 23:15:33,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:33,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091659859] [2021-11-02 23:15:33,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:33,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:33,250 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:33,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:33,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2047759866, now seen corresponding path program 1 times [2021-11-02 23:15:33,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:33,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979945686] [2021-11-02 23:15:33,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:33,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:33,296 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:33,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:33,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash 462437174, now seen corresponding path program 2 times [2021-11-02 23:15:33,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:15:33,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026073533] [2021-11-02 23:15:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:15:33,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:15:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:33,363 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:15:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:15:33,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:15:37,551 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:15:37,551 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:15:37,551 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:15:37,551 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:15:37,551 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:15:37,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:37,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:15:37,552 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:15:37,552 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration9_Lasso [2021-11-02 23:15:37,552 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:15:37,552 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:15:37,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:37,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:37,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:37,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:37,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:37,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:37,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:38,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:38,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:15:38,677 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:15:38,677 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:15:38,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,684 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-02 23:15:38,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:15:38,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:15:38,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:15:38,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:38,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:38,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,719 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-02 23:15:38,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:15:38,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:15:38,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:15:38,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:38,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-02 23:15:38,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,751 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-02 23:15:38,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:15:38,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:15:38,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:15:38,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:38,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-11-02 23:15:38,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,782 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-02 23:15:38,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:38,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:38,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:38,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:38,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,815 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-02 23:15:38,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:38,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:38,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:38,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-11-02 23:15:38,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,848 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-02 23:15:38,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:38,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:38,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:38,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:38,882 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,883 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-02 23:15:38,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:38,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:38,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:38,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-11-02 23:15:38,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:38,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:38,943 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:38,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-02 23:15:38,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:38,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:38,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:38,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:38,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:38,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:38,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:38,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:39,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,028 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-02 23:15:39,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-11-02 23:15:39,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,090 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-02 23:15:39,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:39,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,125 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-02 23:15:39,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-11-02 23:15:39,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,160 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-02 23:15:39,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-11-02 23:15:39,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,216 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-02 23:15:39,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-11-02 23:15:39,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,250 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-02 23:15:39,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-11-02 23:15:39,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,287 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-02 23:15:39,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,301 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:39,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,321 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-02 23:15:39,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:15:39,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-11-02 23:15:39,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,377 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-02 23:15:39,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:15:39,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:15:39,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:15:39,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:15:39,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:15:39,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-02 23:15:39,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-02 23:15:39,392 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:15:39,399 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-11-02 23:15:39,399 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-11-02 23:15:39,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:15:39,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:15:39,400 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:15:39,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-02 23:15:39,401 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:15:39,410 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-02 23:15:39,410 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:15:39,410 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7) = -2*ULTIMATE.start_main_#t~mem7 + 1 Supporting invariants [] [2021-11-02 23:15:39,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-11-02 23:15:39,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-11-02 23:15:39,608 INFO L297 tatePredicateManager]: 42 out of 42 supporting invariants were superfluous and have been removed [2021-11-02 23:15:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:15:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:39,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:15:39,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:15:39,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-02 23:15:39,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:15:39,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-02 23:15:39,797 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-11-02 23:15:39,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-11-02 23:15:39,909 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-02 23:15:39,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 21 [2021-11-02 23:15:39,983 INFO L354 Elim1Store]: treesize reduction 67, result has 32.3 percent of original size [2021-11-02 23:15:39,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 48 [2021-11-02 23:15:40,198 INFO L354 Elim1Store]: treesize reduction 66, result has 33.3 percent of original size [2021-11-02 23:15:40,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-11-02 23:15:40,390 INFO L354 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2021-11-02 23:15:40,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 49 [2021-11-02 23:15:40,482 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:15:40,483 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-11-02 23:15:40,483 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:40,693 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 70 transitions. Complement of second has 23 states. [2021-11-02 23:15:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2021-11-02 23:15:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:15:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 33 transitions. [2021-11-02 23:15:40,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 15 letters. [2021-11-02 23:15:40,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:40,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 31 letters. Loop has 15 letters. [2021-11-02 23:15:40,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:40,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 30 letters. [2021-11-02 23:15:40,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:15:40,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 70 transitions. [2021-11-02 23:15:40,698 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:15:40,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2021-11-02 23:15:40,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:15:40,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:15:40,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:15:40,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:15:40,699 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:15:40,699 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:15:40,699 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:15:40,699 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-02 23:15:40,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:15:40,700 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:15:40,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 23:15:40,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 11:15:40 BoogieIcfgContainer [2021-11-02 23:15:40,705 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 23:15:40,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:15:40,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:15:40,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:15:40,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:15:09" (3/4) ... [2021-11-02 23:15:40,708 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:15:40,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:15:40,709 INFO L168 Benchmark]: Toolchain (without parser) took 32196.11 ms. Allocated memory was 98.6 MB in the beginning and 163.6 MB in the end (delta: 65.0 MB). Free memory was 59.1 MB in the beginning and 78.1 MB in the end (delta: -19.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:15:40,709 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 75.7 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:15:40,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.22 ms. Allocated memory is still 98.6 MB. Free memory was 58.8 MB in the beginning and 70.1 MB in the end (delta: -11.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 23:15:40,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.46 ms. Allocated memory is still 98.6 MB. Free memory was 69.9 MB in the beginning and 68.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:15:40,710 INFO L168 Benchmark]: Boogie Preprocessor took 21.63 ms. Allocated memory is still 98.6 MB. Free memory was 68.5 MB in the beginning and 67.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:15:40,710 INFO L168 Benchmark]: RCFGBuilder took 298.35 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 56.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:15:40,711 INFO L168 Benchmark]: BuchiAutomizer took 31580.58 ms. Allocated memory was 98.6 MB in the beginning and 163.6 MB in the end (delta: 65.0 MB). Free memory was 56.7 MB in the beginning and 79.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:15:40,711 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 163.6 MB. Free memory was 79.2 MB in the beginning and 78.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:15:40,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 75.7 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.22 ms. Allocated memory is still 98.6 MB. Free memory was 58.8 MB in the beginning and 70.1 MB in the end (delta: -11.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.46 ms. Allocated memory is still 98.6 MB. Free memory was 69.9 MB in the beginning and 68.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.63 ms. Allocated memory is still 98.6 MB. Free memory was 68.5 MB in the beginning and 67.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 298.35 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 56.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 31580.58 ms. Allocated memory was 98.6 MB in the beginning and 163.6 MB in the end (delta: 65.0 MB). Free memory was 56.7 MB in the beginning and 79.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. * Witness Printer took 2.75 ms. Allocated memory is still 163.6 MB. Free memory was 79.2 MB in the beginning and 78.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (6 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 1 + -2 * unknown-#memory_int-unknown[x0][x0] and consists of 5 locations. One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x1][x1] + 1 and consists of 12 locations. One deterministic module has affine ranking function -2 * aux-x2-aux + 1 and consists of 13 locations. 6 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.5s and 10 iterations. TraceHistogramMax:4. Analysis of lassos took 20.0s. Construction of modules took 2.7s. Büchi inclusion checks took 8.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 8. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 12/22 HoareTripleCheckerStatistics: 39 SDtfs, 90 SDslu, 45 SDs, 0 SdLazy, 464 SolverSat, 124 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 2.7s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital1233 mio100 ax100 hnf100 lsp98 ukn33 mio100 lsp38 div100 bol100 ite100 ukn100 eq187 hnf88 smp96 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 23:15:40,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:40,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-02 23:15:41,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-11-02 23:15:41,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-11-02 23:15:41,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee9eb3ae-c8b7-4a29-89d5-4f3c8f694810/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE