./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc --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 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:09:45,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:09:45,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:09:45,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:09:45,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:09:45,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:09:45,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:09:45,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:09:45,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:09:45,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:09:46,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:09:46,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:09:46,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:09:46,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:09:46,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:09:46,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:09:46,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:09:46,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:09:46,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:09:46,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:09:46,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:09:46,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:09:46,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:09:46,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:09:46,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:09:46,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:09:46,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:09:46,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:09:46,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:09:46,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:09:46,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:09:46,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:09:46,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:09:46,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:09:46,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:09:46,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:09:46,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:09:46,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:09:46,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:09:46,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:09:46,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:09:46,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:09:46,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:09:46,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:09:46,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:09:46,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:09:46,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:09:46,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:09:46,094 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:09:46,095 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:09:46,095 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:09:46,095 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:09:46,095 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:09:46,095 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:09:46,096 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:09:46,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:09:46,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:09:46,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:09:46,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:09:46,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:09:46,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:09:46,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:09:46,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:09:46,098 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:09:46,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:09:46,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:09:46,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:09:46,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:09:46,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:09:46,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:09:46,100 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:09:46,100 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_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2022-11-02 20:09:46,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:09:46,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:09:46,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:09:46,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:09:46,414 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:09:46,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-11-02 20:09:46,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/data/1e99479fd/b6884755099a4212a0b3efa862a29439/FLAG451516f71 [2022-11-02 20:09:47,070 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:09:47,071 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-11-02 20:09:47,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/data/1e99479fd/b6884755099a4212a0b3efa862a29439/FLAG451516f71 [2022-11-02 20:09:47,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/data/1e99479fd/b6884755099a4212a0b3efa862a29439 [2022-11-02 20:09:47,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:09:47,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:09:47,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:09:47,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:09:47,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:09:47,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36809652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47, skipping insertion in model container [2022-11-02 20:09:47,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:09:47,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:09:47,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:09:47,660 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:09:47,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:09:47,693 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:09:47,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47 WrapperNode [2022-11-02 20:09:47,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:09:47,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:09:47,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:09:47,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:09:47,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,730 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-02 20:09:47,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:09:47,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:09:47,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:09:47,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:09:47,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:09:47,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:09:47,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:09:47,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:09:47,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (1/1) ... [2022-11-02 20:09:47,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:47,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:47,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:47,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:09:47,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:09:47,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:09:47,935 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:09:47,937 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:09:48,016 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:09:48,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:09:48,024 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:09:48,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:09:48 BoogieIcfgContainer [2022-11-02 20:09:48,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:09:48,027 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:09:48,027 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:09:48,032 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:09:48,032 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:09:48,033 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:09:47" (1/3) ... [2022-11-02 20:09:48,033 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2400dbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:09:48, skipping insertion in model container [2022-11-02 20:09:48,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:09:48,034 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:09:47" (2/3) ... [2022-11-02 20:09:48,034 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2400dbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:09:48, skipping insertion in model container [2022-11-02 20:09:48,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:09:48,035 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:09:48" (3/3) ... [2022-11-02 20:09:48,036 INFO L332 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2022-11-02 20:09:48,095 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:09:48,095 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:09:48,096 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:09:48,096 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:09:48,096 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:09:48,096 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:09:48,096 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:09:48,097 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:09:48,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) 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) [2022-11-02 20:09:48,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:09:48,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:48,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:48,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:09:48,127 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:48,128 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:09:48,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) 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) [2022-11-02 20:09:48,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:09:48,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:48,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:48,130 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:09:48,131 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:48,139 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L25-2true [2022-11-02 20:09:48,140 INFO L750 eck$LassoCheckResult]: Loop: 3#L25-2true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 8#L25true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 9#L33true assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 11#L33-2true main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3#L25-2true [2022-11-02 20:09:48,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:09:48,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:48,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974253085] [2022-11-02 20:09:48,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:48,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:48,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:48,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:48,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:48,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161, now seen corresponding path program 1 times [2022-11-02 20:09:48,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:48,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844469774] [2022-11-02 20:09:48,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:48,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:48,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:48,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:48,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash 889701363, now seen corresponding path program 1 times [2022-11-02 20:09:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:48,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805415966] [2022-11-02 20:09:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:48,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:48,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:48,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:48,459 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:48,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:48,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:48,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:48,460 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:48,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:48,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:48,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:48,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-11-02 20:09:48,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:48,462 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:48,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:48,554 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:48,559 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:48,575 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:48,675 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:48,676 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:48,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:48,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:48,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:48,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:48,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:48,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:09:48,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:48,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:48,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:48,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:48,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:48,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:48,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:09:48,871 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:48,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:48,885 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:48,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:48,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:48,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:48,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:48,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:48,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:48,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:48,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-11-02 20:09:48,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:48,887 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:48,889 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:48,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:48,917 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:48,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:49,045 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:49,050 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:49,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:49,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:49,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:49,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:49,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:09:49,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:49,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:49,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:49,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:49,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:49,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:49,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:49,124 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:49,131 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 20:09:49,131 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:09:49,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:49,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:49,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:49,144 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:49,144 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:49,145 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:49,145 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-02 20:09:49,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:09:49,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:49,184 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:49,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:49,233 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:49,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:49,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:49,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:49,421 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:49,424 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:49,497 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) 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). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 51 transitions. Complement of second has 8 states. [2022-11-02 20:09:49,500 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 [2022-11-02 20:09:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-02 20:09:49,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-02 20:09:49,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:49,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-02 20:09:49,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:49,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-02 20:09:49,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:49,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2022-11-02 20:09:49,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:09:49,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 18 states and 25 transitions. [2022-11-02 20:09:49,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-02 20:09:49,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-02 20:09:49,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2022-11-02 20:09:49,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:49,539 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2022-11-02 20:09:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2022-11-02 20:09:49,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2022-11-02 20:09:49,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 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) [2022-11-02 20:09:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2022-11-02 20:09:49,568 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-02 20:09:49,568 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-02 20:09:49,569 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:09:49,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2022-11-02 20:09:49,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-02 20:09:49,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:49,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:49,572 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-02 20:09:49,572 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:49,573 INFO L748 eck$LassoCheckResult]: Stem: 100#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 101#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 109#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 97#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 104#L26 [2022-11-02 20:09:49,573 INFO L750 eck$LassoCheckResult]: Loop: 104#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 102#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 103#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 110#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 104#L26 [2022-11-02 20:09:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-02 20:09:49,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:49,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725935470] [2022-11-02 20:09:49,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:49,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:49,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:49,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:49,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 1 times [2022-11-02 20:09:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:49,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864016532] [2022-11-02 20:09:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:49,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:49,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:49,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash 295929837, now seen corresponding path program 1 times [2022-11-02 20:09:49,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:49,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085710157] [2022-11-02 20:09:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:49,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:49,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:49,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:49,719 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:49,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:49,719 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:49,719 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:49,719 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:49,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:49,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:49,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:49,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-11-02 20:09:49,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:49,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:49,722 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:49,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:49,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:49,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:49,822 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:49,822 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:49,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:49,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:49,824 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:49,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:49,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:49,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:09:49,852 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:49,853 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:49,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:49,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:49,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:49,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:49,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:09:49,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:49,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:49,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:49,955 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:49,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:49,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:49,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:49,991 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:50,003 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:50,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:09:50,025 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:50,025 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:50,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:50,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:50,067 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:09:50,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:50,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:50,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:50,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:50,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:09:50,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:50,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:50,371 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:50,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-02 20:09:50,375 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:50,375 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:50,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:50,376 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:50,376 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:50,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:50,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:50,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-11-02 20:09:50,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:50,376 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:50,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:50,392 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:50,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:50,399 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:50,488 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:50,488 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:50,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:50,490 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:50,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:50,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:50,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:50,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:50,514 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:50,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:50,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:09:50,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:50,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:50,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:50,564 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:09:50,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:50,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:50,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:50,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:50,584 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:09:50,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:50,586 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:09:50,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:50,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:50,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:50,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:50,637 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:09:50,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:50,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:50,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:50,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:50,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:50,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:50,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:50,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:50,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:50,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:50,716 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:50,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:09:50,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:50,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:50,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:50,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:50,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:50,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:50,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:50,762 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:50,776 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:09:50,776 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:09:50,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:50,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:50,780 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:50,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:50,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:50,786 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:50,786 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-02 20:09:50,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:09:50,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:50,827 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:50,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:50,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:50,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:50,868 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:09:50,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:50,946 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:50,947 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:51,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:51,045 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 55 transitions. Complement of second has 7 states. [2022-11-02 20:09:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:51,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:51,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-02 20:09:51,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-02 20:09:51,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:51,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-02 20:09:51,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:51,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2022-11-02 20:09:51,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:51,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 55 transitions. [2022-11-02 20:09:51,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-02 20:09:51,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 46 transitions. [2022-11-02 20:09:51,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-11-02 20:09:51,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-02 20:09:51,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 46 transitions. [2022-11-02 20:09:51,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:51,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 46 transitions. [2022-11-02 20:09:51,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 46 transitions. [2022-11-02 20:09:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-11-02 20:09:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2022-11-02 20:09:51,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-11-02 20:09:51,073 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-11-02 20:09:51,073 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:09:51,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2022-11-02 20:09:51,076 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-02 20:09:51,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:51,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:51,077 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-02 20:09:51,078 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:51,078 INFO L748 eck$LassoCheckResult]: Stem: 200#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 201#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 216#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 218#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 219#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 212#L26-2 [2022-11-02 20:09:51,079 INFO L750 eck$LassoCheckResult]: Loop: 212#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 222#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 204#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 206#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 212#L26-2 [2022-11-02 20:09:51,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2022-11-02 20:09:51,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:51,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427444773] [2022-11-02 20:09:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:51,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:51,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:51,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:51,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1560156, now seen corresponding path program 1 times [2022-11-02 20:09:51,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:51,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906125373] [2022-11-02 20:09:51,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:51,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:51,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:51,136 INFO L85 PathProgramCache]: Analyzing trace with hash 585737416, now seen corresponding path program 1 times [2022-11-02 20:09:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:51,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375505428] [2022-11-02 20:09:51,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:51,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:51,220 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:51,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:51,220 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:51,220 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:51,220 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:51,220 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,221 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:51,221 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:51,221 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-11-02 20:09:51,221 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:51,221 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:51,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,237 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,240 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:51,301 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:51,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:51,302 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:51,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-02 20:09:51,308 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:51,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:51,334 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:51,334 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:51,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:51,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:51,359 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:51,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-02 20:09:51,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:51,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:51,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:51,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:51,419 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:51,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-02 20:09:51,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:51,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:51,481 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:51,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:51,484 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:51,485 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:51,485 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:51,485 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:51,485 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:51,485 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,485 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:51,485 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:51,485 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-11-02 20:09:51,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:51,485 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:51,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,501 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,505 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:51,575 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:51,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:51,576 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:51,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:51,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:51,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:51,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:51,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:51,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:51,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:51,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:51,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-02 20:09:51,613 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:51,617 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:09:51,617 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:09:51,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:51,622 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:51,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-02 20:09:51,635 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:51,635 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:51,635 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:51,635 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-02 20:09:51,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:51,661 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:51,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:51,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:51,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:51,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:51,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:51,733 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 20:09:51,734 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:51,753 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 39 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 90 transitions. Complement of second has 7 states. [2022-11-02 20:09:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-11-02 20:09:51,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-02 20:09:51,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:51,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-02 20:09:51,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:51,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-02 20:09:51,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:51,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 90 transitions. [2022-11-02 20:09:51,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-02 20:09:51,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 76 transitions. [2022-11-02 20:09:51,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-02 20:09:51,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-11-02 20:09:51,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 76 transitions. [2022-11-02 20:09:51,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:51,759 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 76 transitions. [2022-11-02 20:09:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 76 transitions. [2022-11-02 20:09:51,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-11-02 20:09:51,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 46 states have internal predecessors, (69), 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) [2022-11-02 20:09:51,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2022-11-02 20:09:51,764 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-11-02 20:09:51,764 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-11-02 20:09:51,765 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:09:51,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 69 transitions. [2022-11-02 20:09:51,766 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-02 20:09:51,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:51,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:51,766 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:51,766 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:51,767 INFO L748 eck$LassoCheckResult]: Stem: 338#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 339#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 356#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 343#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 344#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 363#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 362#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 358#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 359#L33 [2022-11-02 20:09:51,767 INFO L750 eck$LassoCheckResult]: Loop: 359#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 380#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 379#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 377#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 359#L33 [2022-11-02 20:09:51,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:51,767 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 1 times [2022-11-02 20:09:51,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:51,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683587853] [2022-11-02 20:09:51,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:51,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:51,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:51,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 2 times [2022-11-02 20:09:51,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:51,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796157586] [2022-11-02 20:09:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:51,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:51,789 INFO L85 PathProgramCache]: Analyzing trace with hash 69132454, now seen corresponding path program 1 times [2022-11-02 20:09:51,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:51,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636816957] [2022-11-02 20:09:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:51,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:51,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:51,840 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:51,840 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:51,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:51,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:51,841 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:51,841 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,841 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:51,841 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:51,841 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-11-02 20:09:51,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:51,841 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:51,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,845 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,851 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:51,918 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:51,918 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:51,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:51,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:51,919 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:51,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:51,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:51,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-02 20:09:51,974 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:51,975 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:52,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:52,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,007 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-02 20:09:52,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:52,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:52,025 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:52,026 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:52,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:52,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,054 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-02 20:09:52,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:52,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:52,075 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:52,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:52,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-02 20:09:52,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,101 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-02 20:09:52,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:52,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:52,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:52,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,148 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-02 20:09:52,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:52,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:52,265 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:52,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-11-02 20:09:52,269 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:52,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:52,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:52,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:52,269 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:52,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:52,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:52,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-11-02 20:09:52,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:52,269 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:52,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,274 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,371 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:52,371 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:52,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,373 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-02 20:09:52,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:52,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:52,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:52,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:52,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:52,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:52,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:52,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:52,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:52,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,450 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:52,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:52,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:52,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:52,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:52,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:52,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:52,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-02 20:09:52,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:52,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:52,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,517 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:52,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:52,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:52,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:52,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:52,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:52,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:52,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:52,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-02 20:09:52,547 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:52,551 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 20:09:52,551 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:09:52,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,553 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:52,586 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:52,586 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:52,586 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-02 20:09:52,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-02 20:09:52,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:52,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-02 20:09:52,640 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:52,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:52,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:52,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:52,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:52,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:52,732 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:52,733 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:52,786 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 69 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 110 states and 163 transitions. Complement of second has 7 states. [2022-11-02 20:09:52,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-02 20:09:52,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-02 20:09:52,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:52,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-02 20:09:52,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:52,791 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-02 20:09:52,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:52,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 163 transitions. [2022-11-02 20:09:52,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-02 20:09:52,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 89 states and 132 transitions. [2022-11-02 20:09:52,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-11-02 20:09:52,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-11-02 20:09:52,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 132 transitions. [2022-11-02 20:09:52,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:52,802 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 132 transitions. [2022-11-02 20:09:52,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 132 transitions. [2022-11-02 20:09:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2022-11-02 20:09:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 79 states have (on average 1.481012658227848) internal successors, (117), 78 states have internal predecessors, (117), 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) [2022-11-02 20:09:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2022-11-02 20:09:52,809 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-11-02 20:09:52,809 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-11-02 20:09:52,809 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-02 20:09:52,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 117 transitions. [2022-11-02 20:09:52,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-02 20:09:52,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:52,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:52,811 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:52,811 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:52,811 INFO L748 eck$LassoCheckResult]: Stem: 555#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 556#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 572#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 561#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 562#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 588#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 586#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 581#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 566#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 567#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 553#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 554#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 623#L26 [2022-11-02 20:09:52,811 INFO L750 eck$LassoCheckResult]: Loop: 623#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 624#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 628#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 625#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 623#L26 [2022-11-02 20:09:52,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:52,812 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 1 times [2022-11-02 20:09:52,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:52,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498676156] [2022-11-02 20:09:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:52,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:52,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:52,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:52,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 2 times [2022-11-02 20:09:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:52,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998931152] [2022-11-02 20:09:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:52,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:52,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:52,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:52,836 INFO L85 PathProgramCache]: Analyzing trace with hash -232935838, now seen corresponding path program 2 times [2022-11-02 20:09:52,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:52,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986263864] [2022-11-02 20:09:52,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:52,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:52,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:52,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:52,899 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:52,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:52,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:52,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:52,900 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:52,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:52,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:52,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-11-02 20:09:52,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:52,900 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:52,902 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,919 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:52,985 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:52,985 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:52,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:52,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:52,987 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:52,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:52,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:52,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-02 20:09:53,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-11-02 20:09:53,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:53,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:53,035 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:53,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-02 20:09:53,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:53,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:53,205 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:53,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-02 20:09:53,209 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:53,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:53,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:53,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:53,209 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:53,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:53,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:53,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:53,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-11-02 20:09:53,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:53,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:53,210 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,225 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:53,294 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:53,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:53,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:53,295 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:53,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:53,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:53,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:53,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:53,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:53,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:53,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-02 20:09:53,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:53,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:53,334 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:53,338 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 20:09:53,338 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:09:53,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:53,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:53,340 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:53,343 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:53,344 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:53,344 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:53,344 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-02 20:09:53,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-02 20:09:53,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:53,383 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:53,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:53,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:53,439 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:09:53,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:53,476 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:53,476 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:53,517 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 144 states and 211 transitions. Complement of second has 7 states. [2022-11-02 20:09:53,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:53,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:53,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-02 20:09:53,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-02 20:09:53,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:53,519 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:53,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:53,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:53,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:53,559 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:09:53,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:53,585 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:53,585 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:53,635 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 153 states and 226 transitions. Complement of second has 9 states. [2022-11-02 20:09:53,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2022-11-02 20:09:53,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-02 20:09:53,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:53,641 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:53,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:53,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:53,693 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:09:53,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:53,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:53,723 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:53,724 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:53,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 117 transitions. cyclomatic complexity: 50. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180 states and 272 transitions. Complement of second has 9 states. [2022-11-02 20:09:53,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:53,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:53,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-11-02 20:09:53,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-02 20:09:53,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:53,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-02 20:09:53,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:53,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-02 20:09:53,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:53,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 272 transitions. [2022-11-02 20:09:53,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2022-11-02 20:09:53,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 120 states and 176 transitions. [2022-11-02 20:09:53,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-11-02 20:09:53,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-02 20:09:53,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 176 transitions. [2022-11-02 20:09:53,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:53,793 INFO L218 hiAutomatonCegarLoop]: Abstraction has 120 states and 176 transitions. [2022-11-02 20:09:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 176 transitions. [2022-11-02 20:09:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 94. [2022-11-02 20:09:53,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.4893617021276595) internal successors, (140), 93 states have internal predecessors, (140), 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) [2022-11-02 20:09:53,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 140 transitions. [2022-11-02 20:09:53,807 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 140 transitions. [2022-11-02 20:09:53,807 INFO L428 stractBuchiCegarLoop]: Abstraction has 94 states and 140 transitions. [2022-11-02 20:09:53,807 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-02 20:09:53,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 140 transitions. [2022-11-02 20:09:53,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2022-11-02 20:09:53,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:53,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:53,809 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:53,809 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:53,810 INFO L748 eck$LassoCheckResult]: Stem: 1302#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1303#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1320#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1337#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1335#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 1330#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1328#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1326#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 1323#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 1324#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1362#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1361#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1346#L33 [2022-11-02 20:09:53,810 INFO L750 eck$LassoCheckResult]: Loop: 1346#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 1350#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 1349#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 1345#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1346#L33 [2022-11-02 20:09:53,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 3 times [2022-11-02 20:09:53,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:53,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529838781] [2022-11-02 20:09:53,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:53,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:53,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:53,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:53,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:53,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 3 times [2022-11-02 20:09:53,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:53,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203205917] [2022-11-02 20:09:53,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:53,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:53,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:53,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:53,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:53,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1555787668, now seen corresponding path program 1 times [2022-11-02 20:09:53,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:53,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264326930] [2022-11-02 20:09:53,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:53,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:53,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:53,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:53,921 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:53,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:53,922 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:53,922 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:53,922 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:53,922 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:53,922 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:53,922 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:53,922 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-11-02 20:09:53,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:53,923 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:53,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,936 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:53,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:53,999 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:54,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:54,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:54,001 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:54,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:54,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:54,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-02 20:09:54,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-11-02 20:09:54,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:54,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:54,047 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:54,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-02 20:09:54,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:54,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:54,185 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:54,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-11-02 20:09:54,189 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:54,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:54,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:54,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:54,189 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:54,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:54,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:54,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:54,189 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-11-02 20:09:54,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:54,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:54,191 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,212 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,274 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:54,275 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:54,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:54,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:54,278 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:54,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:54,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-02 20:09:54,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:54,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:54,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:54,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:54,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:54,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:54,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:54,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:54,322 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 20:09:54,322 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:09:54,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:54,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:54,325 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:54,382 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:54,382 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:54,382 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:54,383 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-02 20:09:54,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-02 20:09:54,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-11-02 20:09:54,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:54,439 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:54,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:54,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:54,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:54,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:54,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:54,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:54,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:54,528 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:54,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:54,557 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 139 states and 214 transitions. Complement of second has 7 states. [2022-11-02 20:09:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:54,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-02 20:09:54,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-02 20:09:54,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:54,559 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:54,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:54,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:54,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:54,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:54,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:54,640 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:54,640 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:54,673 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 135 states and 198 transitions. Complement of second has 7 states. [2022-11-02 20:09:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-02 20:09:54,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-02 20:09:54,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:54,675 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:54,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:54,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:54,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:54,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:54,755 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:54,756 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:54,791 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 140 transitions. cyclomatic complexity: 58. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 149 states and 234 transitions. Complement of second has 8 states. [2022-11-02 20:09:54,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:54,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:09:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-02 20:09:54,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-02 20:09:54,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:54,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-02 20:09:54,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:54,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-02 20:09:54,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:54,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 234 transitions. [2022-11-02 20:09:54,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 31 [2022-11-02 20:09:54,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 115 states and 174 transitions. [2022-11-02 20:09:54,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-02 20:09:54,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-02 20:09:54,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 174 transitions. [2022-11-02 20:09:54,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:54,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 174 transitions. [2022-11-02 20:09:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 174 transitions. [2022-11-02 20:09:54,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 89. [2022-11-02 20:09:54,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.550561797752809) internal successors, (138), 88 states have internal predecessors, (138), 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) [2022-11-02 20:09:54,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 138 transitions. [2022-11-02 20:09:54,808 INFO L240 hiAutomatonCegarLoop]: Abstraction has 89 states and 138 transitions. [2022-11-02 20:09:54,808 INFO L428 stractBuchiCegarLoop]: Abstraction has 89 states and 138 transitions. [2022-11-02 20:09:54,809 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-02 20:09:54,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 138 transitions. [2022-11-02 20:09:54,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2022-11-02 20:09:54,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:54,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:54,810 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:54,811 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:54,811 INFO L748 eck$LassoCheckResult]: Stem: 2006#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2007#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2023#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2012#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2013#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 2033#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2028#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2024#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2015#L33 [2022-11-02 20:09:54,811 INFO L750 eck$LassoCheckResult]: Loop: 2015#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 2016#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 2022#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2087#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2088#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 2035#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2029#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2025#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2015#L33 [2022-11-02 20:09:54,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:54,812 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 1 times [2022-11-02 20:09:54,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:54,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117870519] [2022-11-02 20:09:54,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:54,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:54,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:54,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 1 times [2022-11-02 20:09:54,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:54,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408770181] [2022-11-02 20:09:54,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:54,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:54,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:54,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash 834576235, now seen corresponding path program 1 times [2022-11-02 20:09:54,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:54,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520020198] [2022-11-02 20:09:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:54,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:54,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:54,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:54,935 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:54,935 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:54,935 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:54,935 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:54,935 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:54,935 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:54,935 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:54,935 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:54,935 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-11-02 20:09:54,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:54,936 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:54,940 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,943 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,946 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,950 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:54,954 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:55,046 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:55,046 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:55,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,054 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:55,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:55,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-02 20:09:55,078 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:55,079 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:55,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:55,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,103 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-02 20:09:55,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:55,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:55,125 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:55,125 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:55,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:55,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,150 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-02 20:09:55,153 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:55,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:55,171 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:55,171 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:55,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-11-02 20:09:55,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,197 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-02 20:09:55,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:55,219 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:55,219 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:55,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-11-02 20:09:55,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,245 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-02 20:09:55,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:55,247 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:55,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-02 20:09:55,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,290 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-02 20:09:55,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:55,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:55,465 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:55,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-11-02 20:09:55,468 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:55,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:55,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:55,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:55,468 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:55,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:55,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:55,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-11-02 20:09:55,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:55,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:55,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:55,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:55,484 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:55,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:55,491 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:55,580 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:55,580 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:55,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,581 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-02 20:09:55,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:55,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:55,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:55,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:55,593 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:09:55,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:55,594 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:09:55,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:55,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:55,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-11-02 20:09:55,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,631 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-02 20:09:55,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:55,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:55,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:55,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:55,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:55,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:55,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:55,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:55,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:55,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-11-02 20:09:55,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,670 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-02 20:09:55,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:55,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:55,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:55,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:55,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:55,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:55,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:55,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:55,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:55,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,752 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-02 20:09:55,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:55,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:55,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:55,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:55,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:55,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:55,767 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:55,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:55,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:55,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,796 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-02 20:09:55,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:55,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:55,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:55,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:55,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:55,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:55,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:55,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:55,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:55,817 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:09:55,818 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:09:55,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:55,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:55,820 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:55,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-02 20:09:55,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:55,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:55,821 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:55,821 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-02 20:09:55,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-11-02 20:09:55,845 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:55,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:55,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:55,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:55,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:09:55,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:55,930 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-02 20:09:55,930 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 138 transitions. cyclomatic complexity: 60 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:09:56,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 138 transitions. cyclomatic complexity: 60. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 321 states and 487 transitions. Complement of second has 13 states. [2022-11-02 20:09:56,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:56,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:09:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-02 20:09:56,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-02 20:09:56,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:56,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-02 20:09:56,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:56,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-11-02 20:09:56,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:56,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 487 transitions. [2022-11-02 20:09:56,028 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31 [2022-11-02 20:09:56,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 265 states and 408 transitions. [2022-11-02 20:09:56,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-11-02 20:09:56,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2022-11-02 20:09:56,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 408 transitions. [2022-11-02 20:09:56,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:56,031 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 408 transitions. [2022-11-02 20:09:56,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 408 transitions. [2022-11-02 20:09:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2022-11-02 20:09:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 231 states have (on average 1.5541125541125542) internal successors, (359), 230 states have internal predecessors, (359), 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) [2022-11-02 20:09:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 359 transitions. [2022-11-02 20:09:56,044 INFO L240 hiAutomatonCegarLoop]: Abstraction has 231 states and 359 transitions. [2022-11-02 20:09:56,044 INFO L428 stractBuchiCegarLoop]: Abstraction has 231 states and 359 transitions. [2022-11-02 20:09:56,044 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-02 20:09:56,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 359 transitions. [2022-11-02 20:09:56,046 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31 [2022-11-02 20:09:56,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:56,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:56,047 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:56,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:56,047 INFO L748 eck$LassoCheckResult]: Stem: 2500#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2501#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 2516#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2534#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2531#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 2528#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 2526#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2523#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2519#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 2520#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2589#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2590#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2586#L33 [2022-11-02 20:09:56,047 INFO L750 eck$LassoCheckResult]: Loop: 2586#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 2510#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 2515#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2678#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 2680#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 2599#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 2600#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 2585#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2586#L33 [2022-11-02 20:09:56,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:56,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 4 times [2022-11-02 20:09:56,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:56,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841383628] [2022-11-02 20:09:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:56,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:56,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:56,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:56,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 2 times [2022-11-02 20:09:56,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:56,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107092521] [2022-11-02 20:09:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:56,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:56,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:56,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:56,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1424311141, now seen corresponding path program 2 times [2022-11-02 20:09:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:56,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823736913] [2022-11-02 20:09:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:56,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:56,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:56,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:56,162 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:56,162 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:56,162 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:56,162 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:56,162 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:56,163 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,163 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:56,163 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:56,163 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-11-02 20:09:56,163 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:56,163 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:56,164 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,167 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,170 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:56,259 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:56,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:56,261 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:56,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:56,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:56,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-02 20:09:56,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:56,286 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:56,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:56,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:56,313 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:56,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-02 20:09:56,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:56,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:56,333 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:56,333 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:56,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-11-02 20:09:56,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:56,360 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:56,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-02 20:09:56,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:56,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:56,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:56,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:56,405 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:56,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-02 20:09:56,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:56,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:56,593 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:56,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:56,596 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:56,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:56,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:56,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:56,596 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:56,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:56,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:56,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-11-02 20:09:56,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:56,597 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:56,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,601 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,616 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:56,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:56,730 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:56,730 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:56,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:56,738 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:56,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-02 20:09:56,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:56,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:56,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:56,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:56,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:56,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:56,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:56,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:56,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:56,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:56,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:56,804 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:56,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:56,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-02 20:09:56,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:56,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:56,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:56,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:56,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:56,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:56,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:56,824 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:56,828 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:09:56,828 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:09:56,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:56,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:56,830 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:56,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-02 20:09:56,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:56,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:56,831 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:56,831 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-02 20:09:56,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2022-11-02 20:09:56,856 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:56,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:56,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:56,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:56,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:09:56,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:56,964 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-02 20:09:56,964 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-02 20:09:57,054 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 388 states and 603 transitions. Complement of second has 13 states. [2022-11-02 20:09:57,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-02 20:09:57,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-02 20:09:57,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-02 20:09:57,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:57,056 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:57,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:57,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:57,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:57,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:09:57,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:57,165 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-02 20:09:57,165 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-02 20:09:57,258 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 376 states and 570 transitions. Complement of second has 15 states. [2022-11-02 20:09:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-02 20:09:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2022-11-02 20:09:57,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-02 20:09:57,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:57,260 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:57,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:57,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:57,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:09:57,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:57,365 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-02 20:09:57,366 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-02 20:09:57,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 231 states and 359 transitions. cyclomatic complexity: 154. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) Result 695 states and 1068 transitions. Complement of second has 23 states. [2022-11-02 20:09:57,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 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) [2022-11-02 20:09:57,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2022-11-02 20:09:57,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-02 20:09:57,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:57,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 20 letters. Loop has 8 letters. [2022-11-02 20:09:57,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:57,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 12 letters. Loop has 16 letters. [2022-11-02 20:09:57,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:57,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 1068 transitions. [2022-11-02 20:09:57,466 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2022-11-02 20:09:57,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 473 states and 728 transitions. [2022-11-02 20:09:57,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2022-11-02 20:09:57,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-11-02 20:09:57,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 473 states and 728 transitions. [2022-11-02 20:09:57,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:57,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 473 states and 728 transitions. [2022-11-02 20:09:57,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states and 728 transitions. [2022-11-02 20:09:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 272. [2022-11-02 20:09:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 272 states have (on average 1.5661764705882353) internal successors, (426), 271 states have internal predecessors, (426), 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) [2022-11-02 20:09:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 426 transitions. [2022-11-02 20:09:57,485 INFO L240 hiAutomatonCegarLoop]: Abstraction has 272 states and 426 transitions. [2022-11-02 20:09:57,485 INFO L428 stractBuchiCegarLoop]: Abstraction has 272 states and 426 transitions. [2022-11-02 20:09:57,485 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-02 20:09:57,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 272 states and 426 transitions. [2022-11-02 20:09:57,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-11-02 20:09:57,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:57,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:57,488 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:57,488 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:57,488 INFO L748 eck$LassoCheckResult]: Stem: 4461#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4462#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4478#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4466#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4467#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 4578#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4664#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4659#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 4655#L33 [2022-11-02 20:09:57,489 INFO L750 eck$LassoCheckResult]: Loop: 4655#L33 assume !(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := main_~y~0#1 - 1; 4492#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4493#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4499#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 4501#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 4558#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4660#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 4656#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 4655#L33 [2022-11-02 20:09:57,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:57,489 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 2 times [2022-11-02 20:09:57,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:57,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562387431] [2022-11-02 20:09:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:57,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:57,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:57,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:57,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash 930278262, now seen corresponding path program 1 times [2022-11-02 20:09:57,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:57,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939307359] [2022-11-02 20:09:57,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:57,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:57,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:57,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash 25229609, now seen corresponding path program 1 times [2022-11-02 20:09:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:57,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465077463] [2022-11-02 20:09:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:57,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:57,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:57,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:57,588 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:57,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:57,589 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:57,589 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:57,589 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:57,589 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:57,589 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:57,589 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:57,589 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-11-02 20:09:57,589 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:57,589 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:57,590 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:57,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:57,595 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:57,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:57,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:57,677 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:57,677 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:57,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:57,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:57,679 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:57,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-02 20:09:57,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:57,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:57,698 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:57,698 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:57,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2022-11-02 20:09:57,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:57,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:57,721 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:57,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-02 20:09:57,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:57,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:57,735 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:57,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-11-02 20:09:57,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:57,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:57,757 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:57,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:57,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:57,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-02 20:09:57,790 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:57,790 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:57,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2022-11-02 20:09:57,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:57,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:57,826 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:57,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-02 20:09:57,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:57,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:57,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:57,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:57,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:57,886 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:57,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-11-02 20:09:57,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:57,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:58,004 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:58,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2022-11-02 20:09:58,008 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:58,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:58,008 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:58,008 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:58,008 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:58,008 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,008 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:58,008 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:58,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-11-02 20:09:58,009 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:58,009 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:58,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,016 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,034 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,110 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:58,110 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:58,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,114 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:58,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-11-02 20:09:58,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:58,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:58,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:58,131 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:09:58,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:58,131 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:09:58,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:58,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:58,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-11-02 20:09:58,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,183 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-11-02 20:09:58,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:58,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:58,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:58,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:58,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:58,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:58,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:58,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:58,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2022-11-02 20:09:58,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,245 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-11-02 20:09:58,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:58,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:58,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:58,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:58,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:58,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:58,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:58,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:58,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:58,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2022-11-02 20:09:58,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,289 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-11-02 20:09:58,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:58,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:58,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:58,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:58,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:58,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:58,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:58,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:58,306 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:58,308 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-02 20:09:58,308 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:09:58,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,310 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-11-02 20:09:58,311 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:58,311 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:58,311 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:58,311 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-02 20:09:58,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2022-11-02 20:09:58,334 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:58,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:58,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:58,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 20:09:58,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:58,422 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-02 20:09:58,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 272 states and 426 transitions. cyclomatic complexity: 176 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:09:58,509 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 272 states and 426 transitions. cyclomatic complexity: 176. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 583 states and 913 transitions. Complement of second has 12 states. [2022-11-02 20:09:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-02 20:09:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-02 20:09:58,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-02 20:09:58,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:58,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-02 20:09:58,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:58,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-11-02 20:09:58,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:58,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 583 states and 913 transitions. [2022-11-02 20:09:58,518 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-02 20:09:58,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 583 states to 325 states and 495 transitions. [2022-11-02 20:09:58,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-11-02 20:09:58,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-02 20:09:58,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 495 transitions. [2022-11-02 20:09:58,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-02 20:09:58,522 INFO L218 hiAutomatonCegarLoop]: Abstraction has 325 states and 495 transitions. [2022-11-02 20:09:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 495 transitions. [2022-11-02 20:09:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 194. [2022-11-02 20:09:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 194 states have (on average 1.541237113402062) internal successors, (299), 193 states have internal predecessors, (299), 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) [2022-11-02 20:09:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 299 transitions. [2022-11-02 20:09:58,573 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 299 transitions. [2022-11-02 20:09:58,573 INFO L428 stractBuchiCegarLoop]: Abstraction has 194 states and 299 transitions. [2022-11-02 20:09:58,573 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-02 20:09:58,573 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 299 transitions. [2022-11-02 20:09:58,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-02 20:09:58,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:09:58,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:09:58,575 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:09:58,575 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-02 20:09:58,576 INFO L748 eck$LassoCheckResult]: Stem: 5399#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 5400#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5421#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5433#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5428#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5424#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5423#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5422#L25 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 5409#L33 assume main_~x~0#1 < main_~y~0#1;main_~x~0#1 := main_~x~0#1 - 1; 5410#L33-2 main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 5487#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5485#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5474#L26 assume main_~x~0#1 < main_~y~0#1;main_~y~0#1 := main_~x~0#1 - 1; 5471#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5544#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5540#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5406#L26 [2022-11-02 20:09:58,576 INFO L750 eck$LassoCheckResult]: Loop: 5406#L26 assume !(main_~x~0#1 < main_~y~0#1);main_~y~0#1 := main_~y~0#1 - 1; 5401#L26-2 main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 5402#L25-2 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5405#L25 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1; 5406#L26 [2022-11-02 20:09:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash 834576226, now seen corresponding path program 2 times [2022-11-02 20:09:58,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:58,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495346472] [2022-11-02 20:09:58,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:58,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:58,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:58,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:58,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1510086, now seen corresponding path program 2 times [2022-11-02 20:09:58,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:58,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168352337] [2022-11-02 20:09:58,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:58,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:58,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:58,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:58,638 INFO L85 PathProgramCache]: Analyzing trace with hash -389738073, now seen corresponding path program 3 times [2022-11-02 20:09:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:09:58,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135771977] [2022-11-02 20:09:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:09:58,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:09:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:58,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:09:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:09:58,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:09:58,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:58,692 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:58,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:58,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:58,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:58,692 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:09:58,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:58,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:58,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-11-02 20:09:58,693 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:58,693 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:58,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,696 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,699 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,702 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:58,769 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:58,769 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:09:58,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,772 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-11-02 20:09:58,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:58,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:58,791 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:58,791 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:58,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:58,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,816 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-11-02 20:09:58,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:58,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:58,837 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:58,837 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_19=0} Honda state: {v_rep~unnamed0~0~false_19=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:58,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:58,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,863 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-11-02 20:09:58,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:58,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:58,883 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:09:58,883 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_19=1} Honda state: {v_rep~unnamed0~0~true_19=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:09:58,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:58,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,910 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:09:58,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:58,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-11-02 20:09:58,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:58,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:58,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:58,969 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:58,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-11-02 20:09:58,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:09:58,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:09:59,128 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:09:59,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2022-11-02 20:09:59,132 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:09:59,132 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:09:59,132 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:09:59,132 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:09:59,132 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:09:59,132 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:59,132 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:09:59,132 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:09:59,132 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-11-02 20:09:59,132 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:09:59,132 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:09:59,133 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:59,138 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:59,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:59,143 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:09:59,198 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:09:59,199 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:09:59,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:59,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:59,200 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:59,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-11-02 20:09:59,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:59,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:59,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:59,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:59,212 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-02 20:09:59,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:59,213 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-02 20:09:59,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:59,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:59,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:59,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:59,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:59,247 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:59,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-11-02 20:09:59,251 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 [2022-11-02 20:09:59,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:59,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:59,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:59,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:59,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:59,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:59,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:59,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2022-11-02 20:09:59,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:59,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:59,323 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:59,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-11-02 20:09:59,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:59,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:59,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:59,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:59,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:59,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:09:59,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:09:59,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:09:59,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:59,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:59,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:59,378 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:59,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-11-02 20:09:59,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:09:59,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:09:59,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:09:59,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:09:59,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:09:59,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:09:59,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:09:59,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:09:59,395 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:09:59,399 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:09:59,399 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-02 20:09:59,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:09:59,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:09:59,400 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:09:59,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-11-02 20:09:59,401 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:09:59,402 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:09:59,402 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:09:59,402 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-02 20:09:59,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2022-11-02 20:09:59,424 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:09:59,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:59,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:59,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:59,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:59,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:59,496 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:59,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:09:59,527 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 354 states and 540 transitions. Complement of second has 7 states. [2022-11-02 20:09:59,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:59,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:09:59,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-02 20:09:59,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-02 20:09:59,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:59,529 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:59,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:59,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:59,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:59,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:59,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:59,617 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:59,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:09:59,645 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 363 states and 529 transitions. Complement of second has 7 states. [2022-11-02 20:09:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:09:59,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-02 20:09:59,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-02 20:09:59,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:59,647 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-02 20:09:59,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:09:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:59,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:09:59,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:09:59,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:09:59,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:09:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:09:59,724 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-02 20:09:59,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:09:59,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 299 transitions. cyclomatic complexity: 123. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 471 states and 811 transitions. Complement of second has 8 states. [2022-11-02 20:09:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:09:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2022-11-02 20:09:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-02 20:09:59,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-02 20:09:59,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:59,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 4 letters. [2022-11-02 20:09:59,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:59,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-02 20:09:59,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:09:59,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 471 states and 811 transitions. [2022-11-02 20:09:59,755 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:09:59,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 471 states to 0 states and 0 transitions. [2022-11-02 20:09:59,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:09:59,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:09:59,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:09:59,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:09:59,756 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:09:59,756 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:09:59,756 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:09:59,756 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-02 20:09:59,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:09:59,756 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:09:59,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 20:09:59,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:09:59 BoogieIcfgContainer [2022-11-02 20:09:59,764 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:09:59,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:09:59,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:09:59,765 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:09:59,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:09:48" (3/4) ... [2022-11-02 20:09:59,768 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:09:59,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:09:59,769 INFO L158 Benchmark]: Toolchain (without parser) took 12322.66ms. Allocated memory was 109.1MB in the beginning and 172.0MB in the end (delta: 62.9MB). Free memory was 80.0MB in the beginning and 86.2MB in the end (delta: -6.2MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-11-02 20:09:59,770 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:09:59,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.73ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 80.0MB in the beginning and 119.1MB in the end (delta: -39.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:09:59,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.02ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 117.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:09:59,771 INFO L158 Benchmark]: Boogie Preprocessor took 16.17ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 117.0MB in the end (delta: 795.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:09:59,771 INFO L158 Benchmark]: RCFGBuilder took 276.72ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 108.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:09:59,771 INFO L158 Benchmark]: BuchiAutomizer took 11737.03ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 108.2MB in the beginning and 87.2MB in the end (delta: 20.9MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2022-11-02 20:09:59,772 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 172.0MB. Free memory was 87.2MB in the beginning and 86.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:09:59,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory was 63.5MB in the beginning and 63.5MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.73ms. Allocated memory was 109.1MB in the beginning and 142.6MB in the end (delta: 33.6MB). Free memory was 80.0MB in the beginning and 119.1MB in the end (delta: -39.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.02ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 117.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.17ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 117.0MB in the end (delta: 795.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.72ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 108.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 11737.03ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 108.2MB in the beginning and 87.2MB in the end (delta: 20.9MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 172.0MB. Free memory was 87.2MB in the beginning and 86.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 6 deterministic, 4 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.6s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 8.5s. Construction of modules took 0.3s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 442 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 331 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 313 mSDsluCounter, 365 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 347 IncrementalHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 238 mSDtfsCounter, 347 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT10 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax149 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf93 smp100 dnf100 smp100 tf107 neg99 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 20:09:59,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2022-11-02 20:10:00,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f91ff4d-4074-4618-a543-b9eecfbb1d85/bin/uautomizer-Dbtcem3rbc/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