./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a --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-b5237d8 [2022-11-21 13:47:56,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:47:56,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:47:56,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:47:56,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:47:56,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:47:56,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:47:56,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:47:56,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:47:56,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:47:56,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:47:56,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:47:56,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:47:56,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:47:56,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:47:56,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:47:56,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:47:56,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:47:56,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:47:56,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:47:56,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:47:56,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:47:56,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:47:56,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:47:56,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:47:56,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:47:56,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:47:56,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:47:56,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:47:56,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:47:56,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:47:56,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:47:56,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:47:56,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:47:56,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:47:56,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:47:56,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:47:56,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:47:56,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:47:56,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:47:56,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:47:56,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 13:47:56,822 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:47:56,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:47:56,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:47:56,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:47:56,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:47:56,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:47:56,826 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:47:56,826 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 13:47:56,826 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 13:47:56,826 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 13:47:56,828 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 13:47:56,828 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 13:47:56,828 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 13:47:56,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:47:56,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:47:56,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:47:56,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:47:56,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 13:47:56,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 13:47:56,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 13:47:56,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:47:56,830 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 13:47:56,830 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:47:56,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 13:47:56,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:47:56,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:47:56,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:47:56,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:47:56,834 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 13:47:56,834 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_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2022-11-21 13:47:57,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:47:57,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:47:57,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:47:57,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:47:57,133 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:47:57,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-11-21 13:48:00,119 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:48:00,325 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:48:00,325 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2022-11-21 13:48:00,336 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/data/64153e7bb/f8b8837860c84a5f9da780eb7974be6c/FLAG22d9acce6 [2022-11-21 13:48:00,351 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/data/64153e7bb/f8b8837860c84a5f9da780eb7974be6c [2022-11-21 13:48:00,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:48:00,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:48:00,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:48:00,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:48:00,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:48:00,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22719528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00, skipping insertion in model container [2022-11-21 13:48:00,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:48:00,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:48:00,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:48:00,582 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:48:00,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:48:00,612 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:48:00,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00 WrapperNode [2022-11-21 13:48:00,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:48:00,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:48:00,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:48:00,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:48:00,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,648 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-21 13:48:00,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:48:00,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:48:00,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:48:00,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:48:00,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:48:00,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:48:00,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:48:00,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:48:00,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (1/1) ... [2022-11-21 13:48:00,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:00,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:00,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:00,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 13:48:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:48:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:48:00,857 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:48:00,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:48:00,955 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:48:00,962 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:48:00,962 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:48:00,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:00 BoogieIcfgContainer [2022-11-21 13:48:00,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:48:00,966 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 13:48:00,966 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 13:48:00,971 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 13:48:00,972 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 13:48:00,972 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 01:48:00" (1/3) ... [2022-11-21 13:48:00,973 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c76b6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 01:48:00, skipping insertion in model container [2022-11-21 13:48:00,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 13:48:00,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:48:00" (2/3) ... [2022-11-21 13:48:00,974 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c76b6de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 01:48:00, skipping insertion in model container [2022-11-21 13:48:00,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 13:48:00,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:00" (3/3) ... [2022-11-21 13:48:00,976 INFO L332 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2022-11-21 13:48:01,039 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 13:48:01,039 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 13:48:01,039 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 13:48:01,039 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 13:48:01,040 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 13:48:01,040 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 13:48:01,040 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 13:48:01,040 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 13:48:01,045 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) [2022-11-21 13:48:01,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-21 13:48:01,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:01,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:01,071 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 13:48:01,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:01,071 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 13:48:01,072 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) [2022-11-21 13:48:01,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-21 13:48:01,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:01,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:01,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 13:48:01,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:01,082 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 [2022-11-21 13:48:01,083 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 [2022-11-21 13:48:01,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:01,090 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 13:48:01,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:01,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874698534] [2022-11-21 13:48:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:01,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:01,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:01,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:01,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:01,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1274161, now seen corresponding path program 1 times [2022-11-21 13:48:01,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:01,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252319580] [2022-11-21 13:48:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:01,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:01,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:01,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:01,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:01,291 INFO L85 PathProgramCache]: Analyzing trace with hash 889701363, now seen corresponding path program 1 times [2022-11-21 13:48:01,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:01,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441832501] [2022-11-21 13:48:01,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:01,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:01,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:01,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:01,486 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:01,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:01,497 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:01,497 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:01,497 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:01,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:01,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:01,498 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:01,498 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-11-21 13:48:01,498 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:01,498 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:01,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,572 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,580 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,662 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:01,663 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:01,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:01,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:01,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:01,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:01,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:01,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 13:48:01,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:01,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:01,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:01,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:01,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 13:48:01,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:01,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:01,779 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:01,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:01,789 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:01,789 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:01,789 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:01,789 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:01,789 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:01,789 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:01,790 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:01,790 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:01,790 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2022-11-21 13:48:01,790 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:01,790 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:01,792 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,814 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:01,888 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:01,893 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:01,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:01,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:01,904 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 [2022-11-21 13:48:01,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 13:48:01,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:01,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:01,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:01,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:01,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:01,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:01,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:01,935 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:01,942 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-21 13:48:01,942 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 13:48:01,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:01,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:01,965 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:01,968 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:01,968 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:01,969 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:01,969 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 [] [2022-11-21 13:48:01,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 13:48:01,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:01,982 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:02,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:02,022 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:02,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:02,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:02,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:02,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:02,213 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 [2022-11-21 13:48:02,215 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) [2022-11-21 13:48:02,262 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. [2022-11-21 13:48:02,264 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 [2022-11-21 13:48:02,269 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) [2022-11-21 13:48:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-21 13:48:02,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-21 13:48:02,272 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:02,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-21 13:48:02,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:02,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2022-11-21 13:48:02,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:02,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 51 transitions. [2022-11-21 13:48:02,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-21 13:48:02,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 18 states and 25 transitions. [2022-11-21 13:48:02,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-21 13:48:02,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-21 13:48:02,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2022-11-21 13:48:02,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:02,284 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2022-11-21 13:48:02,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2022-11-21 13:48:02,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2022-11-21 13:48:02,310 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) [2022-11-21 13:48:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2022-11-21 13:48:02,312 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-21 13:48:02,312 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-11-21 13:48:02,312 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 13:48:02,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2022-11-21 13:48:02,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-21 13:48:02,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:02,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:02,314 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-21 13:48:02,314 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:02,314 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 [2022-11-21 13:48:02,314 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 [2022-11-21 13:48:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:02,315 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-21 13:48:02,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:02,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538004133] [2022-11-21 13:48:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:02,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:02,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:02,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:02,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:02,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 1 times [2022-11-21 13:48:02,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:02,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276747929] [2022-11-21 13:48:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:02,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:02,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:02,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:02,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash 295929837, now seen corresponding path program 1 times [2022-11-21 13:48:02,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:02,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899774972] [2022-11-21 13:48:02,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:02,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:02,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:02,391 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:02,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:02,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:02,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:02,392 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:02,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:02,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:02,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-11-21 13:48:02,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:02,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:02,394 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,401 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,405 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,476 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:02,476 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:02,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:02,478 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:02,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 13:48:02,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:02,522 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:02,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:02,547 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: [] [2022-11-21 13:48:02,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:02,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:02,558 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:02,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:02,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:02,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 13:48:02,598 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:02,598 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: [] [2022-11-21 13:48:02,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:02,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:02,608 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:02,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:02,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:02,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 13:48:02,642 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:02,642 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: [] [2022-11-21 13:48:02,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:02,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:02,648 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:02,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:02,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:02,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 13:48:02,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:02,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:02,690 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:02,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 13:48:02,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:02,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:02,833 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:02,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:02,838 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:02,838 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:02,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:02,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:02,838 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:02,838 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,838 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:02,838 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:02,838 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2022-11-21 13:48:02,839 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:02,839 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:02,840 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,864 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:02,937 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:02,938 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:02,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:02,939 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:02,948 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 [2022-11-21 13:48:02,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-21 13:48:02,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:02,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:02,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:02,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:02,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:02,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:02,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:02,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:02,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:02,996 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 13:48:03,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-21 13:48:03,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:03,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:03,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:03,028 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 13:48:03,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:03,030 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-21 13:48:03,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:03,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:03,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:03,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,057 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,062 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 [2022-11-21 13:48:03,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-21 13:48:03,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:03,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:03,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:03,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:03,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:03,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:03,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:03,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:03,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,108 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-21 13:48:03,112 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 [2022-11-21 13:48:03,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:03,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:03,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:03,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:03,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:03,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:03,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:03,139 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:03,172 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 13:48:03,172 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 13:48:03,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,183 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-21 13:48:03,190 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:03,190 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:03,190 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:03,190 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 [] [2022-11-21 13:48:03,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:03,195 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:03,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:03,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:03,257 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:48:03,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:03,292 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 [2022-11-21 13:48:03,292 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) [2022-11-21 13:48:03,325 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. [2022-11-21 13:48:03,325 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 [2022-11-21 13:48:03,326 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) [2022-11-21 13:48:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-21 13:48:03,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-21 13:48:03,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:03,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-21 13:48:03,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:03,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 8 letters. [2022-11-21 13:48:03,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:03,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 55 transitions. [2022-11-21 13:48:03,330 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-21 13:48:03,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 46 transitions. [2022-11-21 13:48:03,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-11-21 13:48:03,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-21 13:48:03,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 46 transitions. [2022-11-21 13:48:03,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:03,333 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 46 transitions. [2022-11-21 13:48:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 46 transitions. [2022-11-21 13:48:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2022-11-21 13:48:03,337 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) [2022-11-21 13:48:03,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 39 transitions. [2022-11-21 13:48:03,338 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-11-21 13:48:03,338 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 39 transitions. [2022-11-21 13:48:03,342 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 13:48:03,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 39 transitions. [2022-11-21 13:48:03,343 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-21 13:48:03,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:03,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:03,347 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 13:48:03,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:03,347 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 [2022-11-21 13:48:03,348 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 [2022-11-21 13:48:03,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:03,349 INFO L85 PathProgramCache]: Analyzing trace with hash 28699757, now seen corresponding path program 1 times [2022-11-21 13:48:03,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:03,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161555048] [2022-11-21 13:48:03,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:03,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:03,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:03,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:03,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1560156, now seen corresponding path program 1 times [2022-11-21 13:48:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:03,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214341444] [2022-11-21 13:48:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:03,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:03,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:03,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:03,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash 585737416, now seen corresponding path program 1 times [2022-11-21 13:48:03,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:03,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593247362] [2022-11-21 13:48:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:03,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:03,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:03,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:03,466 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:03,467 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:03,467 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:03,467 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:03,468 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:03,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:03,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:03,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-11-21 13:48:03,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:03,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:03,471 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,475 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,486 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,489 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,547 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:03,548 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:03,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,551 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-21 13:48:03,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:03,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:03,588 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:03,588 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: [] [2022-11-21 13:48:03,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:03,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,604 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:03,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:03,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-21 13:48:03,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:03,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,652 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:03,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:03,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-21 13:48:03,707 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:03,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:03,716 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:03,716 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:03,716 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:03,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:03,716 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:03,716 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,717 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:03,717 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:03,717 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2022-11-21 13:48:03,717 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:03,717 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:03,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,729 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,736 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:03,799 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:03,799 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:03,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,801 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,810 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 [2022-11-21 13:48:03,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-21 13:48:03,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:03,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:03,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:03,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:03,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:03,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:03,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:03,836 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:03,840 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 13:48:03,840 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 13:48:03,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:03,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:03,844 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:03,857 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:03,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:03,858 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:03,858 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 [] [2022-11-21 13:48:03,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-11-21 13:48:03,875 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:03,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:03,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:03,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:03,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-21 13:48:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:03,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:03,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:03,961 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 [2022-11-21 13:48:03,962 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) [2022-11-21 13:48:03,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:03,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,019 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. [2022-11-21 13:48:04,021 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 [2022-11-21 13:48:04,022 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) [2022-11-21 13:48:04,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-11-21 13:48:04,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-21 13:48:04,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:04,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-21 13:48:04,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:04,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-21 13:48:04,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:04,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 90 transitions. [2022-11-21 13:48:04,025 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-21 13:48:04,027 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 53 states and 76 transitions. [2022-11-21 13:48:04,027 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-21 13:48:04,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-11-21 13:48:04,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 76 transitions. [2022-11-21 13:48:04,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:04,028 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53 states and 76 transitions. [2022-11-21 13:48:04,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 76 transitions. [2022-11-21 13:48:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-11-21 13:48:04,032 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) [2022-11-21 13:48:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 69 transitions. [2022-11-21 13:48:04,033 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-11-21 13:48:04,033 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 69 transitions. [2022-11-21 13:48:04,033 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 13:48:04,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 69 transitions. [2022-11-21 13:48:04,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-21 13:48:04,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:04,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:04,035 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:04,035 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:04,035 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 [2022-11-21 13:48:04,035 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 [2022-11-21 13:48:04,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:04,036 INFO L85 PathProgramCache]: Analyzing trace with hash 295929846, now seen corresponding path program 1 times [2022-11-21 13:48:04,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:04,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291080684] [2022-11-21 13:48:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:04,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:04,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 2 times [2022-11-21 13:48:04,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:04,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511404030] [2022-11-21 13:48:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:04,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash 69132454, now seen corresponding path program 1 times [2022-11-21 13:48:04,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:04,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681224500] [2022-11-21 13:48:04,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:04,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:04,141 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:04,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:04,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:04,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:04,142 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:04,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,142 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:04,142 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:04,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-11-21 13:48:04,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:04,143 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:04,145 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,149 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,156 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,232 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:04,232 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:04,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,233 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-21 13:48:04,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:04,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:04,266 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:04,266 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: [] [2022-11-21 13:48:04,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,277 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:04,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:04,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-21 13:48:04,310 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:04,310 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: [] [2022-11-21 13:48:04,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,321 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:04,328 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:04,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-21 13:48:04,350 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:04,350 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: [] [2022-11-21 13:48:04,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,360 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:04,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:04,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-21 13:48:04,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-21 13:48:04,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,394 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-21 13:48:04,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:04,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:04,548 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:04,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,555 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:04,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:04,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:04,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:04,555 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:04,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:04,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:04,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2022-11-21 13:48:04,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:04,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:04,557 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,560 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,564 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:04,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:04,639 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:04,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,640 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-21 13:48:04,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-21 13:48:04,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:04,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:04,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:04,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:04,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:04,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:04,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:04,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,693 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,699 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 [2022-11-21 13:48:04,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:04,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:04,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:04,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:04,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:04,715 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:04,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-21 13:48:04,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:04,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,747 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,756 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 [2022-11-21 13:48:04,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:04,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:04,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:04,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:04,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:04,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-21 13:48:04,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:04,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:04,790 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:04,793 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-21 13:48:04,793 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 13:48:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:04,795 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:04,799 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:04,799 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:04,799 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:04,799 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 [] [2022-11-21 13:48:04,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-21 13:48:04,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:04,809 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:04,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:04,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:04,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:04,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:04,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:04,875 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 [2022-11-21 13:48:04,876 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) [2022-11-21 13:48:04,904 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. [2022-11-21 13:48:04,905 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 [2022-11-21 13:48:04,905 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) [2022-11-21 13:48:04,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-21 13:48:04,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-21 13:48:04,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:04,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-21 13:48:04,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:04,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-21 13:48:04,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:04,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 110 states and 163 transitions. [2022-11-21 13:48:04,910 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-21 13:48:04,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 110 states to 89 states and 132 transitions. [2022-11-21 13:48:04,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-11-21 13:48:04,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2022-11-21 13:48:04,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 132 transitions. [2022-11-21 13:48:04,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:04,912 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 132 transitions. [2022-11-21 13:48:04,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 132 transitions. [2022-11-21 13:48:04,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2022-11-21 13:48:04,922 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) [2022-11-21 13:48:04,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2022-11-21 13:48:04,926 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-11-21 13:48:04,926 INFO L428 stractBuchiCegarLoop]: Abstraction has 79 states and 117 transitions. [2022-11-21 13:48:04,927 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-21 13:48:04,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 117 transitions. [2022-11-21 13:48:04,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-11-21 13:48:04,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:04,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:04,933 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:04,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:04,934 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 [2022-11-21 13:48:04,934 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 [2022-11-21 13:48:04,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash 69192027, now seen corresponding path program 1 times [2022-11-21 13:48:04,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:04,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560109692] [2022-11-21 13:48:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:04,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1450504, now seen corresponding path program 2 times [2022-11-21 13:48:04,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:04,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697985603] [2022-11-21 13:48:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:04,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:04,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:04,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:04,986 INFO L85 PathProgramCache]: Analyzing trace with hash -232935838, now seen corresponding path program 2 times [2022-11-21 13:48:04,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:04,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493200102] [2022-11-21 13:48:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:04,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:05,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:05,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:05,058 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:05,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:05,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:05,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:05,058 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:05,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:05,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:05,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:05,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-11-21 13:48:05,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:05,059 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:05,060 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,073 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,077 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,081 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:05,160 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:05,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:05,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:05,161 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:05,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:05,165 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:05,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-21 13:48:05,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:05,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:05,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:05,224 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:05,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:05,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:05,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-21 13:48:05,414 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:05,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-21 13:48:05,418 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:05,418 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:05,418 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:05,418 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:05,418 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:05,418 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:05,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:05,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:05,419 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2022-11-21 13:48:05,419 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:05,419 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:05,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,446 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:05,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:05,517 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:05,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:05,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:05,521 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:05,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-21 13:48:05,528 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 [2022-11-21 13:48:05,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:05,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:05,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:05,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:05,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:05,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:05,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:05,553 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:05,557 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-21 13:48:05,557 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 13:48:05,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:05,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:05,559 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:05,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:05,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:05,567 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:05,567 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 [] [2022-11-21 13:48:05,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-21 13:48:05,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:05,578 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:05,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:05,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:05,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:05,635 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:48:05,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:05,675 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 [2022-11-21 13:48:05,675 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) [2022-11-21 13:48:05,729 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. [2022-11-21 13:48:05,729 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 [2022-11-21 13:48:05,732 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) [2022-11-21 13:48:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-21 13:48:05,733 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-21 13:48:05,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:05,733 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:05,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:05,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:05,780 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:48:05,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:05,807 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 [2022-11-21 13:48:05,808 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) [2022-11-21 13:48:05,854 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. [2022-11-21 13:48:05,854 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 [2022-11-21 13:48:05,856 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) [2022-11-21 13:48:05,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2022-11-21 13:48:05,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-21 13:48:05,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:05,860 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:05,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:05,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:05,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:05,905 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:48:05,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:05,935 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 [2022-11-21 13:48:05,936 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) [2022-11-21 13:48:05,971 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. [2022-11-21 13:48:05,971 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 [2022-11-21 13:48:05,973 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) [2022-11-21 13:48:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-11-21 13:48:05,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-21 13:48:05,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:05,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-21 13:48:05,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:05,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-21 13:48:06,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:06,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 272 transitions. [2022-11-21 13:48:06,003 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2022-11-21 13:48:06,004 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 120 states and 176 transitions. [2022-11-21 13:48:06,004 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2022-11-21 13:48:06,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-21 13:48:06,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 176 transitions. [2022-11-21 13:48:06,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:06,005 INFO L218 hiAutomatonCegarLoop]: Abstraction has 120 states and 176 transitions. [2022-11-21 13:48:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 176 transitions. [2022-11-21 13:48:06,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 94. [2022-11-21 13:48:06,011 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) [2022-11-21 13:48:06,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 140 transitions. [2022-11-21 13:48:06,012 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 140 transitions. [2022-11-21 13:48:06,012 INFO L428 stractBuchiCegarLoop]: Abstraction has 94 states and 140 transitions. [2022-11-21 13:48:06,012 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-21 13:48:06,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 140 transitions. [2022-11-21 13:48:06,013 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2022-11-21 13:48:06,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:06,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:06,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:06,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:06,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:06,028 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 [2022-11-21 13:48:06,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:06,028 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 [2022-11-21 13:48:06,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 3 times [2022-11-21 13:48:06,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:06,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114871317] [2022-11-21 13:48:06,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:06,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1727281, now seen corresponding path program 3 times [2022-11-21 13:48:06,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:06,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627100841] [2022-11-21 13:48:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:06,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1555787668, now seen corresponding path program 1 times [2022-11-21 13:48:06,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:06,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797014790] [2022-11-21 13:48:06,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:06,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:06,142 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:06,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:06,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:06,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:06,142 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:06,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:06,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:06,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:06,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-11-21 13:48:06,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:06,143 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:06,144 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,156 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,163 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,224 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:06,225 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:06,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:06,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:06,226 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:06,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:06,230 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:06,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-21 13:48:06,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:06,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:06,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:06,261 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:06,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:06,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:06,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-21 13:48:06,427 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:06,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:06,436 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:06,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:06,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:06,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:06,436 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:06,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:06,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:06,437 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:06,437 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2022-11-21 13:48:06,437 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:06,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:06,438 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,456 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:06,514 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:06,514 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:06,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:06,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:06,516 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:06,519 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 [2022-11-21 13:48:06,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-21 13:48:06,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:06,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:06,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:06,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:06,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:06,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:06,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:06,537 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:06,539 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-21 13:48:06,539 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 13:48:06,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:06,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:06,540 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:06,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-21 13:48:06,543 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:06,543 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:06,543 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:06,543 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 [] [2022-11-21 13:48:06,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:06,547 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:06,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:06,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:06,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:06,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:06,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:06,633 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 [2022-11-21 13:48:06,634 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) [2022-11-21 13:48:06,669 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. [2022-11-21 13:48:06,670 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 [2022-11-21 13:48:06,672 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) [2022-11-21 13:48:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-21 13:48:06,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-21 13:48:06,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:06,674 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:06,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:06,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:06,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:06,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:06,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:06,748 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 [2022-11-21 13:48:06,748 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) [2022-11-21 13:48:06,784 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. [2022-11-21 13:48:06,785 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 [2022-11-21 13:48:06,786 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) [2022-11-21 13:48:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-21 13:48:06,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-21 13:48:06,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:06,787 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:06,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:06,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:06,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:06,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:06,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:06,872 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 [2022-11-21 13:48:06,873 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) [2022-11-21 13:48:06,903 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. [2022-11-21 13:48:06,904 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 [2022-11-21 13:48:06,904 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) [2022-11-21 13:48:06,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-21 13:48:06,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-21 13:48:06,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:06,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-21 13:48:06,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:06,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-21 13:48:06,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:06,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 234 transitions. [2022-11-21 13:48:06,908 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 31 [2022-11-21 13:48:06,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 115 states and 174 transitions. [2022-11-21 13:48:06,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-21 13:48:06,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-21 13:48:06,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 174 transitions. [2022-11-21 13:48:06,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:06,910 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 174 transitions. [2022-11-21 13:48:06,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 174 transitions. [2022-11-21 13:48:06,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 89. [2022-11-21 13:48:06,915 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) [2022-11-21 13:48:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 138 transitions. [2022-11-21 13:48:06,916 INFO L240 hiAutomatonCegarLoop]: Abstraction has 89 states and 138 transitions. [2022-11-21 13:48:06,916 INFO L428 stractBuchiCegarLoop]: Abstraction has 89 states and 138 transitions. [2022-11-21 13:48:06,916 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-21 13:48:06,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 138 transitions. [2022-11-21 13:48:06,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 27 [2022-11-21 13:48:06,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:06,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:06,918 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:06,918 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:06,918 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 [2022-11-21 13:48:06,918 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 [2022-11-21 13:48:06,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,919 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 1 times [2022-11-21 13:48:06,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:06,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284964096] [2022-11-21 13:48:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:06,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:06,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 1 times [2022-11-21 13:48:06,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:06,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395557626] [2022-11-21 13:48:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:06,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:06,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:06,950 INFO L85 PathProgramCache]: Analyzing trace with hash 834576235, now seen corresponding path program 1 times [2022-11-21 13:48:06,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:06,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403610206] [2022-11-21 13:48:06,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:06,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:06,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:07,039 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:07,039 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:07,040 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:07,040 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:07,040 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:07,040 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,040 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:07,040 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:07,040 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-11-21 13:48:07,041 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:07,041 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:07,042 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,046 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,049 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,056 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,134 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:07,134 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:07,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,136 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-21 13:48:07,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:07,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:07,159 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:07,159 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: [] [2022-11-21 13:48:07,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:07,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,168 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:07,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:07,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-21 13:48:07,191 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:07,191 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: [] [2022-11-21 13:48:07,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-11-21 13:48:07,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,196 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-21 13:48:07,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:07,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:07,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:07,217 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: [] [2022-11-21 13:48:07,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:07,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,223 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-21 13:48:07,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:07,237 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:07,237 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 13:48:07,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-11-21 13:48:07,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,242 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-21 13:48:07,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:07,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:07,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-21 13:48:07,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,270 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-21 13:48:07,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:07,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:07,442 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:07,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-11-21 13:48:07,445 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:07,445 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:07,445 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:07,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:07,445 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:07,445 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,445 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:07,445 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:07,445 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2022-11-21 13:48:07,445 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:07,446 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:07,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,458 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:07,554 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:07,555 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:07,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,556 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,560 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 [2022-11-21 13:48:07,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:07,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:07,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:07,573 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 13:48:07,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:07,574 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-21 13:48:07,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:07,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-21 13:48:07,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:07,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:07,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,596 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-21 13:48:07,599 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 [2022-11-21 13:48:07,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:07,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:07,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:07,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:07,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:07,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:07,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:07,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:07,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2022-11-21 13:48:07,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,615 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-21 13:48:07,619 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 [2022-11-21 13:48:07,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:07,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:07,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:07,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:07,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:07,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:07,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:07,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:07,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,664 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,672 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 [2022-11-21 13:48:07,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:07,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:07,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:07,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:07,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-21 13:48:07,689 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:07,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:07,706 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:07,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:07,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,711 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,719 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 [2022-11-21 13:48:07,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-21 13:48:07,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:07,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:07,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:07,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:07,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:07,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:07,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:07,746 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:07,750 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 13:48:07,750 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 13:48:07,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:07,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:07,751 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:07,762 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:07,763 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:07,763 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:07,763 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 [] [2022-11-21 13:48:07,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-21 13:48:07,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:07,768 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:07,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:07,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:07,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:07,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:48:07,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:07,853 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 [2022-11-21 13:48:07,853 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) [2022-11-21 13:48:07,931 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. [2022-11-21 13:48:07,932 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 [2022-11-21 13:48:07,932 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) [2022-11-21 13:48:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-21 13:48:07,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-21 13:48:07,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:07,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-21 13:48:07,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:07,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-11-21 13:48:07,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:07,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 487 transitions. [2022-11-21 13:48:07,937 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31 [2022-11-21 13:48:07,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 265 states and 408 transitions. [2022-11-21 13:48:07,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2022-11-21 13:48:07,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2022-11-21 13:48:07,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 408 transitions. [2022-11-21 13:48:07,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:07,941 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 408 transitions. [2022-11-21 13:48:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 408 transitions. [2022-11-21 13:48:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2022-11-21 13:48:07,950 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) [2022-11-21 13:48:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 359 transitions. [2022-11-21 13:48:07,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 231 states and 359 transitions. [2022-11-21 13:48:07,952 INFO L428 stractBuchiCegarLoop]: Abstraction has 231 states and 359 transitions. [2022-11-21 13:48:07,952 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-21 13:48:07,952 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 359 transitions. [2022-11-21 13:48:07,981 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 31 [2022-11-21 13:48:07,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:07,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:07,982 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:07,982 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:07,983 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 [2022-11-21 13:48:07,983 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 [2022-11-21 13:48:07,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:07,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1933001244, now seen corresponding path program 4 times [2022-11-21 13:48:07,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:07,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760917012] [2022-11-21 13:48:07,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:07,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:07,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:07,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:07,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:07,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:07,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1739624888, now seen corresponding path program 2 times [2022-11-21 13:48:07,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:07,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263023581] [2022-11-21 13:48:07,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:07,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:08,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:08,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:08,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:08,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:08,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1424311141, now seen corresponding path program 2 times [2022-11-21 13:48:08,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:08,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965284524] [2022-11-21 13:48:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:08,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:08,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:08,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:08,119 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:08,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:08,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:08,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:08,120 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:08,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:08,121 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:08,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-11-21 13:48:08,121 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:08,121 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:08,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,126 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,129 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,143 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,146 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,216 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:08,216 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:08,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:08,218 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:08,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-21 13:48:08,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:08,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:08,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:08,255 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: [] [2022-11-21 13:48:08,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:08,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:08,261 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:08,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:08,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:08,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-21 13:48:08,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:08,303 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: [] [2022-11-21 13:48:08,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:08,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:08,310 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:08,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:08,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:08,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-21 13:48:08,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:08,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:08,353 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:08,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:08,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:08,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-21 13:48:08,518 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:08,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-11-21 13:48:08,521 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:08,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:08,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:08,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:08,522 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:08,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:08,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:08,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2022-11-21 13:48:08,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:08,522 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:08,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,531 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,550 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,553 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:08,633 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:08,633 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:08,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:08,635 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:08,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-21 13:48:08,638 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 [2022-11-21 13:48:08,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:08,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:08,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:08,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:08,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:08,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:08,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:08,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:08,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:08,683 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:08,691 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 [2022-11-21 13:48:08,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-21 13:48:08,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:08,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:08,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:08,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:08,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:08,706 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:08,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:08,726 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:08,731 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 13:48:08,731 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 13:48:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:08,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:08,733 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:08,737 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:08,737 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:08,737 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:08,737 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 [] [2022-11-21 13:48:08,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-21 13:48:08,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:08,741 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:08,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:08,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:08,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:08,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:48:08,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:08,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:08,835 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 [2022-11-21 13:48:08,835 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) [2022-11-21 13:48:08,923 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. [2022-11-21 13:48:08,924 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 [2022-11-21 13:48:08,924 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) [2022-11-21 13:48:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-21 13:48:08,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-21 13:48:08,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:08,925 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:08,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:08,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:08,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:48:08,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:09,032 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 [2022-11-21 13:48:09,032 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) [2022-11-21 13:48:09,126 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. [2022-11-21 13:48:09,127 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 [2022-11-21 13:48:09,128 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) [2022-11-21 13:48:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2022-11-21 13:48:09,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-21 13:48:09,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:09,129 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:09,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:09,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:09,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:09,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:48:09,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:09,214 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 [2022-11-21 13:48:09,214 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) [2022-11-21 13:48:09,292 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. [2022-11-21 13:48:09,293 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 [2022-11-21 13:48:09,294 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) [2022-11-21 13:48:09,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2022-11-21 13:48:09,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 12 letters. Loop has 8 letters. [2022-11-21 13:48:09,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:09,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 20 letters. Loop has 8 letters. [2022-11-21 13:48:09,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:09,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 12 letters. Loop has 16 letters. [2022-11-21 13:48:09,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:09,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 1068 transitions. [2022-11-21 13:48:09,300 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2022-11-21 13:48:09,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 473 states and 728 transitions. [2022-11-21 13:48:09,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2022-11-21 13:48:09,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-11-21 13:48:09,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 473 states and 728 transitions. [2022-11-21 13:48:09,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:09,304 INFO L218 hiAutomatonCegarLoop]: Abstraction has 473 states and 728 transitions. [2022-11-21 13:48:09,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states and 728 transitions. [2022-11-21 13:48:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 272. [2022-11-21 13:48:09,328 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) [2022-11-21 13:48:09,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 426 transitions. [2022-11-21 13:48:09,329 INFO L240 hiAutomatonCegarLoop]: Abstraction has 272 states and 426 transitions. [2022-11-21 13:48:09,329 INFO L428 stractBuchiCegarLoop]: Abstraction has 272 states and 426 transitions. [2022-11-21 13:48:09,329 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-11-21 13:48:09,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 272 states and 426 transitions. [2022-11-21 13:48:09,331 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2022-11-21 13:48:09,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:09,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:09,332 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:09,332 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:09,333 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 [2022-11-21 13:48:09,333 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 [2022-11-21 13:48:09,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:09,333 INFO L85 PathProgramCache]: Analyzing trace with hash 295989428, now seen corresponding path program 2 times [2022-11-21 13:48:09,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:09,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312990629] [2022-11-21 13:48:09,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:09,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:09,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:09,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash 930278262, now seen corresponding path program 1 times [2022-11-21 13:48:09,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:09,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007892960] [2022-11-21 13:48:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:09,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:09,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:09,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash 25229609, now seen corresponding path program 1 times [2022-11-21 13:48:09,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:09,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311075171] [2022-11-21 13:48:09,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:09,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:09,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:09,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:09,458 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:09,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:09,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:09,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:09,459 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:09,459 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,459 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:09,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:09,459 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-11-21 13:48:09,459 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:09,459 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:09,462 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,472 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,552 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:09,552 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:09,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:09,555 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:09,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:09,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:09,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-21 13:48:09,592 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:09,592 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: [] [2022-11-21 13:48:09,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:09,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:09,598 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:09,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:09,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-21 13:48:09,619 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:09,619 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-21 13:48:09,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-11-21 13:48:09,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:09,624 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:09,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-21 13:48:09,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:09,627 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:09,646 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:09,646 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: [] [2022-11-21 13:48:09,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2022-11-21 13:48:09,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:09,650 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:09,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:09,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:09,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-21 13:48:09,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:09,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:09,703 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:09,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:09,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:09,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-11-21 13:48:09,842 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:09,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:09,846 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:09,846 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:09,846 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:09,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:09,846 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:09,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:09,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:09,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2022-11-21 13:48:09,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:09,846 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:09,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,862 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,865 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,880 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:09,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:09,952 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:09,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:09,953 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:09,963 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 [2022-11-21 13:48:09,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:09,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:09,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:09,977 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 13:48:09,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:09,978 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-21 13:48:09,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:09,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-11-21 13:48:09,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:09,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:09,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:09,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:09,993 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:09,997 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 [2022-11-21 13:48:10,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:10,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:10,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:10,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:10,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:10,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:10,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-11-21 13:48:10,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:10,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,040 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,043 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 [2022-11-21 13:48:10,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-11-21 13:48:10,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:10,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:10,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:10,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:10,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:10,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:10,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:10,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:10,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2022-11-21 13:48:10,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,065 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-11-21 13:48:10,068 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 [2022-11-21 13:48:10,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:10,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:10,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:10,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:10,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:10,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:10,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:10,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:10,087 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-21 13:48:10,087 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-21 13:48:10,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,088 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-11-21 13:48:10,093 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:10,093 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:10,093 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:10,093 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 [] [2022-11-21 13:48:10,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2022-11-21 13:48:10,097 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:10,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:10,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:10,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:10,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:48:10,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:10,185 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 [2022-11-21 13:48:10,185 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) [2022-11-21 13:48:10,296 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. [2022-11-21 13:48:10,302 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 [2022-11-21 13:48:10,303 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) [2022-11-21 13:48:10,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2022-11-21 13:48:10,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-21 13:48:10,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:10,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-21 13:48:10,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:10,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 16 letters. [2022-11-21 13:48:10,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:10,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 583 states and 913 transitions. [2022-11-21 13:48:10,308 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-11-21 13:48:10,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 583 states to 325 states and 495 transitions. [2022-11-21 13:48:10,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-11-21 13:48:10,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-21 13:48:10,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 495 transitions. [2022-11-21 13:48:10,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 13:48:10,312 INFO L218 hiAutomatonCegarLoop]: Abstraction has 325 states and 495 transitions. [2022-11-21 13:48:10,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 495 transitions. [2022-11-21 13:48:10,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 194. [2022-11-21 13:48:10,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,324 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) [2022-11-21 13:48:10,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 299 transitions. [2022-11-21 13:48:10,325 INFO L240 hiAutomatonCegarLoop]: Abstraction has 194 states and 299 transitions. [2022-11-21 13:48:10,325 INFO L428 stractBuchiCegarLoop]: Abstraction has 194 states and 299 transitions. [2022-11-21 13:48:10,325 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-11-21 13:48:10,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 299 transitions. [2022-11-21 13:48:10,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 13:48:10,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:48:10,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:48:10,327 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:48:10,327 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-21 13:48:10,327 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 [2022-11-21 13:48:10,327 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 [2022-11-21 13:48:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash 834576226, now seen corresponding path program 2 times [2022-11-21 13:48:10,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:10,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189903305] [2022-11-21 13:48:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:10,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:10,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2022-11-21 13:48:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:10,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:10,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:10,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1510086, now seen corresponding path program 2 times [2022-11-21 13:48:10,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:10,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134909577] [2022-11-21 13:48:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:10,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:10,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:10,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:10,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:10,380 INFO L85 PathProgramCache]: Analyzing trace with hash -389738073, now seen corresponding path program 3 times [2022-11-21 13:48:10,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:48:10,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889098495] [2022-11-21 13:48:10,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:48:10,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:48:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:10,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:48:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:48:10,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:48:10,429 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:10,429 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:10,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:10,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:10,430 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:48:10,430 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,430 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:10,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:10,430 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-11-21 13:48:10,430 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:10,430 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:10,431 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,435 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,501 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:10,501 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:48:10,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,503 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:10,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:10,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-11-21 13:48:10,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:10,531 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: [] [2022-11-21 13:48:10,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,536 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:10,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:10,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-11-21 13:48:10,562 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:10,563 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: [] [2022-11-21 13:48:10,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,568 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:10,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:10,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-11-21 13:48:10,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:48:10,595 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: [] [2022-11-21 13:48:10,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,600 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:48:10,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:10,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-11-21 13:48:10,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,636 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:48:10,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:48:10,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-11-21 13:48:10,803 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-21 13:48:10,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,806 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:48:10,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:48:10,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:48:10,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:48:10,807 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 13:48:10,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:48:10,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:48:10,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2022-11-21 13:48:10,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:48:10,807 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:48:10,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,824 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:48:10,887 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:48:10,887 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 13:48:10,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,888 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,899 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 [2022-11-21 13:48:10,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:10,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:10,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2022-11-21 13:48:10,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:10,913 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 13:48:10,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:10,915 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-21 13:48:10,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:10,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:10,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:10,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,923 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,932 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 [2022-11-21 13:48:10,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:10,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:10,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:10,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:10,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2022-11-21 13:48:10,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:10,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:10,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:10,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2022-11-21 13:48:10,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:10,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:10,958 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:10,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-11-21 13:48:10,961 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 [2022-11-21 13:48:10,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:10,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:10,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:10,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:10,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 13:48:10,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 13:48:10,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 13:48:11,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:11,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:11,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:11,005 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:11,011 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 [2022-11-21 13:48:11,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-11-21 13:48:11,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 13:48:11,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 13:48:11,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 13:48:11,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 13:48:11,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 13:48:11,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 13:48:11,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 13:48:11,026 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 13:48:11,040 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-21 13:48:11,040 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-21 13:48:11,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:48:11,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:48:11,041 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:48:11,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-11-21 13:48:11,043 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 13:48:11,043 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-21 13:48:11,044 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 13:48:11,044 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 [] [2022-11-21 13:48:11,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:11,047 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-21 13:48:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:11,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:11,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:11,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:11,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:11,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:11,137 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 [2022-11-21 13:48:11,137 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) [2022-11-21 13:48:11,165 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. [2022-11-21 13:48:11,165 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 [2022-11-21 13:48:11,167 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) [2022-11-21 13:48:11,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-21 13:48:11,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-21 13:48:11,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:11,168 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:11,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:11,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:11,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:11,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:11,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:11,262 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 [2022-11-21 13:48:11,262 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) [2022-11-21 13:48:11,287 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. [2022-11-21 13:48:11,288 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 [2022-11-21 13:48:11,288 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) [2022-11-21 13:48:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-11-21 13:48:11,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-21 13:48:11,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:11,289 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 13:48:11,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:48:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:11,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 13:48:11,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:48:11,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 13:48:11,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:48:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:48:11,364 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 [2022-11-21 13:48:11,364 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) [2022-11-21 13:48:11,392 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. [2022-11-21 13:48:11,393 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 [2022-11-21 13:48:11,393 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) [2022-11-21 13:48:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-21 13:48:11,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-21 13:48:11,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:11,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 20 letters. Loop has 4 letters. [2022-11-21 13:48:11,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:11,394 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-21 13:48:11,394 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 13:48:11,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 471 states and 811 transitions. [2022-11-21 13:48:11,398 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 13:48:11,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 471 states to 0 states and 0 transitions. [2022-11-21 13:48:11,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 13:48:11,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 13:48:11,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 13:48:11,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:48:11,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:48:11,399 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:48:11,399 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:48:11,400 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-11-21 13:48:11,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 13:48:11,400 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 13:48:11,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 13:48:11,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 01:48:11 BoogieIcfgContainer [2022-11-21 13:48:11,407 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 13:48:11,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:48:11,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:48:11,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:48:11,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:48:00" (3/4) ... [2022-11-21 13:48:11,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:48:11,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:48:11,415 INFO L158 Benchmark]: Toolchain (without parser) took 11058.24ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 145.5MB in the beginning and 117.3MB in the end (delta: 28.2MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2022-11-21 13:48:11,416 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:48:11,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.70ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 135.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:48:11,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.94ms. Allocated memory is still 176.2MB. Free memory was 135.8MB in the beginning and 134.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:48:11,417 INFO L158 Benchmark]: Boogie Preprocessor took 22.32ms. Allocated memory is still 176.2MB. Free memory was 134.6MB in the beginning and 133.7MB in the end (delta: 873.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:48:11,417 INFO L158 Benchmark]: RCFGBuilder took 290.32ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 124.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 13:48:11,418 INFO L158 Benchmark]: BuchiAutomizer took 10441.62ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 124.3MB in the beginning and 118.3MB in the end (delta: 6.0MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2022-11-21 13:48:11,418 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 211.8MB. Free memory was 118.3MB in the beginning and 117.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:48:11,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.70ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 135.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.94ms. Allocated memory is still 176.2MB. Free memory was 135.8MB in the beginning and 134.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.32ms. Allocated memory is still 176.2MB. Free memory was 134.6MB in the beginning and 133.7MB in the end (delta: 873.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.32ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 124.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10441.62ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 124.3MB in the beginning and 118.3MB in the end (delta: 6.0MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 211.8MB. Free memory was 118.3MB in the beginning and 117.3MB 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 10.3s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 7.3s. Construction of modules took 0.3s. Büchi inclusion checks took 2.3s. 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, 0.4s 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: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 19 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-21 13:48:11,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2022-11-21 13:48:11,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab453fe4-20a6-44b3-aaea-1658ac7acf71/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE