./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30e01a73 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_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 99c02e26cc69c81635e61f874ccaf79837a3339fa533477441a437bf8690e003 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:43:57,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:43:57,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 21:43:57,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:43:57,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:43:57,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:43:57,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:43:57,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:43:57,840 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:43:57,840 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:43:57,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:43:57,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:43:57,843 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:43:57,844 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 21:43:57,844 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 21:43:57,845 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 21:43:57,845 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 21:43:57,846 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 21:43:57,847 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 21:43:57,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:43:57,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 21:43:57,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:43:57,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:43:57,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 21:43:57,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 21:43:57,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 21:43:57,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:43:57,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:43:57,857 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 21:43:57,858 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:43:57,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:43:57,859 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:43:57,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:43:57,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:43:57,861 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 21:43:57,861 INFO L153 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_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99c02e26cc69c81635e61f874ccaf79837a3339fa533477441a437bf8690e003 [2023-11-23 21:43:58,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:43:58,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:43:58,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:43:58,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:43:58,153 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:43:58,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i [2023-11-23 21:44:01,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:44:01,677 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:44:01,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i [2023-11-23 21:44:01,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/data/c6ee7e29a/3017dd8148f841deb8c0545f6ce3f92a/FLAG2a4fc5c96 [2023-11-23 21:44:01,711 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/data/c6ee7e29a/3017dd8148f841deb8c0545f6ce3f92a [2023-11-23 21:44:01,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:44:01,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:44:01,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:01,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:44:01,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:44:01,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:01" (1/1) ... [2023-11-23 21:44:01,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228ebdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:01, skipping insertion in model container [2023-11-23 21:44:01,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:01" (1/1) ... [2023-11-23 21:44:01,804 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:44:02,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:02,137 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:44:02,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:02,205 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:44:02,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02 WrapperNode [2023-11-23 21:44:02,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:02,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:02,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:44:02,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:44:02,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,252 INFO L138 Inliner]: procedures = 110, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2023-11-23 21:44:02,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:02,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:44:02,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:44:02,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:44:02,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,270 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,282 INFO L189 HeapSplitter]: Split 4 memory accesses to 1 slices as follows [4] [2023-11-23 21:44:02,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:44:02,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:44:02,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:44:02,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:44:02,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (1/1) ... [2023-11-23 21:44:02,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:02,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:02,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:02,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 21:44:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:44:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:44:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:44:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:44:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:44:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:44:02,480 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:44:02,482 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:44:02,630 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:44:02,640 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:44:02,641 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:44:02,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:02 BoogieIcfgContainer [2023-11-23 21:44:02,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:44:02,644 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 21:44:02,644 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 21:44:02,647 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 21:44:02,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:02,648 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:44:01" (1/3) ... [2023-11-23 21:44:02,649 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d0562f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:44:02, skipping insertion in model container [2023-11-23 21:44:02,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:02,650 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:02" (2/3) ... [2023-11-23 21:44:02,650 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d0562f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:44:02, skipping insertion in model container [2023-11-23 21:44:02,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 21:44:02,650 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:02" (3/3) ... [2023-11-23 21:44:02,652 INFO L332 chiAutomizerObserver]: Analyzing ICFG count_down-alloca-2.i [2023-11-23 21:44:02,709 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 21:44:02,709 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 21:44:02,709 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 21:44:02,709 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 21:44:02,709 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 21:44:02,710 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 21:44:02,710 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 21:44:02,710 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 21:44:02,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2023-11-23 21:44:02,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-23 21:44:02,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:02,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:02,749 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-23 21:44:02,750 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:44:02,750 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 21:44:02,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2023-11-23 21:44:02,752 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-23 21:44:02,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:02,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:02,753 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-23 21:44:02,753 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:44:02,762 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 16#L551true assume !(main_~length~0#1 < 1); 10#L551-2true call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 8#L553true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 15#L554-3true [2023-11-23 21:44:02,762 INFO L750 eck$LassoCheckResult]: Loop: 15#L554-3true assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3#L556true assume main_~val~0#1 < 0;main_~val~0#1 := 0; 4#L556-2true call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 12#L554-2true main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 15#L554-3true [2023-11-23 21:44:02,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:02,769 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2023-11-23 21:44:02,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:02,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182476214] [2023-11-23 21:44:02,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:02,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:02,970 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:02,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2023-11-23 21:44:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:02,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575718007] [2023-11-23 21:44:02,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:02,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:03,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:03,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:03,066 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:03,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:03,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2023-11-23 21:44:03,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:03,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563414076] [2023-11-23 21:44:03,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:03,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:03,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:03,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:03,458 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:03,459 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:03,459 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:03,459 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:03,459 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:03,459 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:03,459 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:03,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:03,460 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration1_Lasso [2023-11-23 21:44:03,460 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:03,460 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:03,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,665 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:03,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:04,029 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:04,034 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:04,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,058 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 [2023-11-23 21:44:04,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 21:44:04,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:04,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:04,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:04,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:04,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:04,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:04,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:04,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:04,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:04,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:04,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:04,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:04,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:04,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:04,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:04,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:04,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:04,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 21:44:04,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:04,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:04,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 21:44:04,184 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 [2023-11-23 21:44:04,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:04,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:04,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:04,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:04,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:04,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:04,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:04,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:04,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:04,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,232 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,236 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 [2023-11-23 21:44:04,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:04,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:04,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:04,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:04,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:04,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:04,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:04,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 21:44:04,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:04,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:04,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,292 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 21:44:04,296 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 [2023-11-23 21:44:04,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:04,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:04,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:04,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:04,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:04,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:04,325 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:04,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:04,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 21:44:04,360 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 [2023-11-23 21:44:04,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:04,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:04,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:04,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:04,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:04,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:04,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:04,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:04,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:04,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,425 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 [2023-11-23 21:44:04,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:04,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:04,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:04,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:04,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-23 21:44:04,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:04,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:04,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:04,539 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-11-23 21:44:04,540 INFO L444 ModelExtractionUtils]: 2 out of 19 variables were initially zero. Simplification set additionally 13 variables to zero. [2023-11-23 21:44:04,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,569 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-23 21:44:04,583 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:04,601 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-23 21:44:04,601 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:04,602 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc3#1.base)_1, ULTIMATE.start_main_~arr~0#1.offset, ULTIMATE.start_main_~i~0#1) = 2*v_rep(select #length ULTIMATE.start_main_#t~malloc3#1.base)_1 - 1*ULTIMATE.start_main_~arr~0#1.offset - 4*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-23 21:44:04,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:04,632 INFO L156 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2023-11-23 21:44:04,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc3!base] could not be translated [2023-11-23 21:44:04,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:04,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:44:04,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:04,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:44:04,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:04,805 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-23 21:44:04,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:04,899 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 57 transitions. Complement of second has 9 states. [2023-11-23 21:44:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2023-11-23 21:44:04,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-23 21:44:04,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:04,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-23 21:44:04,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:04,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-23 21:44:04,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:04,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 57 transitions. [2023-11-23 21:44:04,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:04,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 15 states and 20 transitions. [2023-11-23 21:44:04,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2023-11-23 21:44:04,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-23 21:44:04,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2023-11-23 21:44:04,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:44:04,920 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-23 21:44:04,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2023-11-23 21:44:04,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-23 21:44:04,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-11-23 21:44:04,946 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-23 21:44:04,946 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-23 21:44:04,946 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 21:44:04,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2023-11-23 21:44:04,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:04,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:04,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:04,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:04,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:44:04,948 INFO L748 eck$LassoCheckResult]: Stem: 145#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 138#L551 assume !(main_~length~0#1 < 1); 141#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 139#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 140#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 136#L554-4 main_~j~0#1 := 0; 135#L561-3 [2023-11-23 21:44:04,948 INFO L750 eck$LassoCheckResult]: Loop: 135#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 143#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 142#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 134#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 135#L561-3 [2023-11-23 21:44:04,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:04,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2023-11-23 21:44:04,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:04,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674123490] [2023-11-23 21:44:04,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:04,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:05,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:05,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674123490] [2023-11-23 21:44:05,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674123490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:05,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:05,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:44:05,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397619662] [2023-11-23 21:44:05,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:05,039 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:05,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:05,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2023-11-23 21:44:05,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:05,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973838232] [2023-11-23 21:44:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:05,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:05,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:05,129 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:05,167 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2023-11-23 21:44:05,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2023-11-23 21:44:05,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:05,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2023-11-23 21:44:05,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 21:44:05,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-23 21:44:05,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2023-11-23 21:44:05,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:44:05,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2023-11-23 21:44:05,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2023-11-23 21:44:05,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-11-23 21:44:05,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2023-11-23 21:44:05,177 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-11-23 21:44:05,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:44:05,178 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-11-23 21:44:05,178 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 21:44:05,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2023-11-23 21:44:05,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:05,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:05,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:05,180 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:05,180 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:44:05,180 INFO L748 eck$LassoCheckResult]: Stem: 185#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 177#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 178#L551 assume !(main_~length~0#1 < 1); 183#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 179#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 180#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 171#L556 assume !(main_~val~0#1 < 0); 172#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 173#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 184#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 176#L554-4 main_~j~0#1 := 0; 175#L561-3 [2023-11-23 21:44:05,181 INFO L750 eck$LassoCheckResult]: Loop: 175#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 182#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 181#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 174#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 175#L561-3 [2023-11-23 21:44:05,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:05,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2023-11-23 21:44:05,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:05,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931291032] [2023-11-23 21:44:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:05,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:05,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:05,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2023-11-23 21:44:05,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:05,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365508526] [2023-11-23 21:44:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:05,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:05,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:05,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2023-11-23 21:44:05,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:05,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055777587] [2023-11-23 21:44:05,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:05,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:05,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:05,662 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:05,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:05,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:05,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:05,663 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:05,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:05,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:05,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:05,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration3_Lasso [2023-11-23 21:44:05,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:05,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:05,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:05,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:05,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:06,158 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:06,158 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:06,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:06,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,160 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,169 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 [2023-11-23 21:44:06,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:06,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:06,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:06,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:06,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:06,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:06,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:06,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-23 21:44:06,196 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:06,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:06,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:06,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,222 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,238 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 [2023-11-23 21:44:06,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-23 21:44:06,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:06,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:06,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:06,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:06,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:06,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:06,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:06,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:06,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:06,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:06,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,288 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,296 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 [2023-11-23 21:44:06,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:06,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:06,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:06,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:06,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:06,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:06,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:06,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-23 21:44:06,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:06,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:06,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:06,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,355 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-23 21:44:06,359 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 [2023-11-23 21:44:06,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:06,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:06,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:06,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:06,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:06,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:06,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:06,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:06,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:06,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:06,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,411 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,419 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 [2023-11-23 21:44:06,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:06,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:06,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:06,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:06,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-23 21:44:06,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:06,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:06,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:06,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:06,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:06,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,483 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,487 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 [2023-11-23 21:44:06,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:06,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:06,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:06,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:06,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-23 21:44:06,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:06,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:06,526 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:06,556 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-11-23 21:44:06,557 INFO L444 ModelExtractionUtils]: 4 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2023-11-23 21:44:06,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:06,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,558 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,565 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:06,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-23 21:44:06,593 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-23 21:44:06,593 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:06,593 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 1 Supporting invariants [-1*ULTIMATE.start_main_~length~0#1 + 1 >= 0] [2023-11-23 21:44:06,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:06,630 INFO L156 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2023-11-23 21:44:06,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:06,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:44:06,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:06,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:44:06,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:06,819 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2023-11-23 21:44:06,819 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2023-11-23 21:44:06,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 41 states and 53 transitions. Complement of second has 11 states. [2023-11-23 21:44:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:06,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2023-11-23 21:44:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2023-11-23 21:44:06,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 11 letters. Loop has 4 letters. [2023-11-23 21:44:06,972 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:06,972 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 15 letters. Loop has 4 letters. [2023-11-23 21:44:06,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:06,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 11 letters. Loop has 8 letters. [2023-11-23 21:44:06,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:06,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2023-11-23 21:44:06,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-23 21:44:06,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 40 states and 52 transitions. [2023-11-23 21:44:06,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-23 21:44:06,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-23 21:44:06,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 52 transitions. [2023-11-23 21:44:06,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:06,977 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 52 transitions. [2023-11-23 21:44:06,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 52 transitions. [2023-11-23 21:44:06,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2023-11-23 21:44:06,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 33 states have internal predecessors, (45), 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) [2023-11-23 21:44:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2023-11-23 21:44:06,981 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 45 transitions. [2023-11-23 21:44:06,981 INFO L428 stractBuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2023-11-23 21:44:06,981 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-23 21:44:06,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 45 transitions. [2023-11-23 21:44:06,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-23 21:44:06,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:06,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:06,983 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:06,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:06,983 INFO L748 eck$LassoCheckResult]: Stem: 351#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 338#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 339#L551 assume main_~length~0#1 < 1;main_~length~0#1 := 1; 347#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 348#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 364#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 353#L556 assume !(main_~val~0#1 < 0); 363#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 349#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 350#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 352#L554-4 main_~j~0#1 := 0; 357#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 344#L562-3 [2023-11-23 21:44:06,984 INFO L750 eck$LassoCheckResult]: Loop: 344#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 343#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 344#L562-3 [2023-11-23 21:44:06,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:06,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2113338830, now seen corresponding path program 1 times [2023-11-23 21:44:06,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:06,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295743788] [2023-11-23 21:44:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:06,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:07,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:07,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:07,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2023-11-23 21:44:07,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:07,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596140477] [2023-11-23 21:44:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:07,022 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:07,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:07,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash -600913837, now seen corresponding path program 1 times [2023-11-23 21:44:07,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:07,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506805693] [2023-11-23 21:44:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:07,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:07,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:07,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:07,329 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:07,329 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:07,329 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:07,329 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:07,330 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:07,330 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:07,330 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:07,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:07,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration4_Lasso [2023-11-23 21:44:07,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:07,330 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:07,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:07,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,550 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:07,789 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:07,789 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:07,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:07,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:07,793 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:07,796 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 [2023-11-23 21:44:07,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:07,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:07,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:07,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:07,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-23 21:44:07,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:07,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:07,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:07,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:07,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:07,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:07,852 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:07,865 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 [2023-11-23 21:44:07,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:07,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:07,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:07,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:07,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:07,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:07,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:07,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-23 21:44:07,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:07,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:07,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:07,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:07,920 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:07,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:07,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:07,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:07,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:07,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:07,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:07,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:07,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:07,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-23 21:44:07,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:07,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:07,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:07,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:07,974 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:07,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:07,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-23 21:44:07,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:07,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:07,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:07,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:07,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:07,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:07,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:08,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:08,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:08,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:08,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:08,027 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:08,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-23 21:44:08,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:08,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:08,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:08,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:08,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:08,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:08,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:08,079 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:08,092 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-23 21:44:08,093 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-11-23 21:44:08,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:08,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:08,096 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:08,109 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:08,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-23 21:44:08,133 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-23 21:44:08,133 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:08,133 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 0)_1) = 1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 0)_1 Supporting invariants [] [2023-11-23 21:44:08,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:08,174 INFO L156 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2023-11-23 21:44:08,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#0[~arr~0!base][0] could not be translated [2023-11-23 21:44:08,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:08,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:44:08,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:08,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:08,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:08,331 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2023-11-23 21:44:08,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 16 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2023-11-23 21:44:08,393 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 16. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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 50 states and 65 transitions. Complement of second has 9 states. [2023-11-23 21:44:08,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:08,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2023-11-23 21:44:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2023-11-23 21:44:08,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2023-11-23 21:44:08,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:08,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 14 letters. Loop has 2 letters. [2023-11-23 21:44:08,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:08,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2023-11-23 21:44:08,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:08,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 65 transitions. [2023-11-23 21:44:08,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-23 21:44:08,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 44 states and 57 transitions. [2023-11-23 21:44:08,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-23 21:44:08,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-23 21:44:08,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 57 transitions. [2023-11-23 21:44:08,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:08,400 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 57 transitions. [2023-11-23 21:44:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 57 transitions. [2023-11-23 21:44:08,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2023-11-23 21:44:08,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 41 states have internal predecessors, (55), 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) [2023-11-23 21:44:08,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2023-11-23 21:44:08,404 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 55 transitions. [2023-11-23 21:44:08,404 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 55 transitions. [2023-11-23 21:44:08,405 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-23 21:44:08,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 55 transitions. [2023-11-23 21:44:08,409 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-23 21:44:08,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:08,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:08,413 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:08,413 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:08,414 INFO L748 eck$LassoCheckResult]: Stem: 529#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 516#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 517#L551 assume main_~length~0#1 < 1;main_~length~0#1 := 1; 530#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 548#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 547#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 507#L556 assume !(main_~val~0#1 < 0); 508#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 509#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 525#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 540#L554-4 main_~j~0#1 := 0; 539#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 538#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 534#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 512#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 513#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 521#L562-3 [2023-11-23 21:44:08,414 INFO L750 eck$LassoCheckResult]: Loop: 521#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 520#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 521#L562-3 [2023-11-23 21:44:08,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:08,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1952579805, now seen corresponding path program 1 times [2023-11-23 21:44:08,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:08,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651296701] [2023-11-23 21:44:08,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:08,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:44:08,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:08,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651296701] [2023-11-23 21:44:08,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651296701] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:08,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892942872] [2023-11-23 21:44:08,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:08,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:08,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:08,489 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:08,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 21:44:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:08,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:44:08,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 21:44:08,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:08,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892942872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:08,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:44:08,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-23 21:44:08,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577871199] [2023-11-23 21:44:08,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:08,608 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:08,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:08,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2023-11-23 21:44:08,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:08,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354527711] [2023-11-23 21:44:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:08,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:08,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:08,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:08,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:08,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:44:08,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:44:08,675 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. cyclomatic complexity: 20 Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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) [2023-11-23 21:44:08,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:08,714 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2023-11-23 21:44:08,714 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 62 transitions. [2023-11-23 21:44:08,716 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-23 21:44:08,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 35 states and 45 transitions. [2023-11-23 21:44:08,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-23 21:44:08,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-11-23 21:44:08,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 45 transitions. [2023-11-23 21:44:08,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:08,719 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2023-11-23 21:44:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 45 transitions. [2023-11-23 21:44:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-23 21:44:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 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) [2023-11-23 21:44:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2023-11-23 21:44:08,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 45 transitions. [2023-11-23 21:44:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:44:08,732 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2023-11-23 21:44:08,733 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-23 21:44:08,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2023-11-23 21:44:08,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-23 21:44:08,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:08,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:08,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:08,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:08,736 INFO L748 eck$LassoCheckResult]: Stem: 673#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 660#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 661#L551 assume !(main_~length~0#1 < 1); 670#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 664#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 665#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 653#L556 assume !(main_~val~0#1 < 0); 654#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 655#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 685#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 662#L554-4 main_~j~0#1 := 0; 663#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 669#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 681#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 658#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 659#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 667#L562-3 [2023-11-23 21:44:08,736 INFO L750 eck$LassoCheckResult]: Loop: 667#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 666#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 667#L562-3 [2023-11-23 21:44:08,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:08,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2023-11-23 21:44:08,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:08,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907808804] [2023-11-23 21:44:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:08,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:08,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:08,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907808804] [2023-11-23 21:44:08,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907808804] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:08,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780151590] [2023-11-23 21:44:08,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:44:08,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:08,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:08,857 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:08,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 21:44:08,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:44:08,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:44:08,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:44:08,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:08,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:08,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:09,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780151590] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:09,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:09,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-23 21:44:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063044110] [2023-11-23 21:44:09,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:09,011 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:09,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:09,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2023-11-23 21:44:09,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:09,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974447696] [2023-11-23 21:44:09,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,027 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:09,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:09,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 21:44:09,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:44:09,069 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. cyclomatic complexity: 16 Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 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) [2023-11-23 21:44:09,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:09,236 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-11-23 21:44:09,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2023-11-23 21:44:09,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:09,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 27 states and 34 transitions. [2023-11-23 21:44:09,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-23 21:44:09,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-23 21:44:09,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2023-11-23 21:44:09,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:09,241 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2023-11-23 21:44:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2023-11-23 21:44:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-11-23 21:44:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.25) internal successors, (30), 23 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2023-11-23 21:44:09,252 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-11-23 21:44:09,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:44:09,255 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-11-23 21:44:09,256 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-23 21:44:09,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2023-11-23 21:44:09,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-23 21:44:09,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:09,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:09,258 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:09,259 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-23 21:44:09,259 INFO L748 eck$LassoCheckResult]: Stem: 849#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 837#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 838#L551 assume !(main_~length~0#1 < 1); 843#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 841#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 842#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 850#L556 assume !(main_~val~0#1 < 0); 855#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 847#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 848#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 832#L556 assume !(main_~val~0#1 < 0); 833#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 834#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 854#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 839#L554-4 main_~j~0#1 := 0; 840#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 853#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 844#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 835#L561-2 [2023-11-23 21:44:09,259 INFO L750 eck$LassoCheckResult]: Loop: 835#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 836#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 851#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 852#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 835#L561-2 [2023-11-23 21:44:09,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:09,260 INFO L85 PathProgramCache]: Analyzing trace with hash -983203256, now seen corresponding path program 1 times [2023-11-23 21:44:09,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:09,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297874357] [2023-11-23 21:44:09,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:09,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2664470, now seen corresponding path program 3 times [2023-11-23 21:44:09,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:09,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405616000] [2023-11-23 21:44:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:09,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:09,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1226461475, now seen corresponding path program 3 times [2023-11-23 21:44:09,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:09,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723752852] [2023-11-23 21:44:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:09,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:09,790 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:09,790 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:09,790 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:09,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:09,790 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:09,790 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:09,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:09,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:09,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration7_Lasso [2023-11-23 21:44:09,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:09,791 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:09,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,000 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:10,308 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:10,308 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:10,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:10,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:10,311 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:10,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-23 21:44:10,313 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 [2023-11-23 21:44:10,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:10,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:10,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:10,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:10,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:10,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:10,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:10,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:10,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:10,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:10,380 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:10,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-23 21:44:10,387 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 [2023-11-23 21:44:10,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:10,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:10,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:10,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:10,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:10,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:10,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:10,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:10,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:10,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:10,434 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:10,440 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 [2023-11-23 21:44:10,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:10,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:10,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:10,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:10,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:10,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:10,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-23 21:44:10,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:10,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-23 21:44:10,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:10,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:10,488 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:10,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-23 21:44:10,490 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 [2023-11-23 21:44:10,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:10,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:10,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:10,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:10,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:10,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:10,537 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:10,570 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-11-23 21:44:10,570 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2023-11-23 21:44:10,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:10,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:10,575 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:10,584 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:10,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-23 21:44:10,613 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-23 21:44:10,613 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:10,613 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~length~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~length~0#1 Supporting invariants [] [2023-11-23 21:44:10,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:10,654 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2023-11-23 21:44:10,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:10,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:10,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:10,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:44:10,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:10,754 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 [2023-11-23 21:44:10,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2023-11-23 21:44:10,777 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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 32 states and 40 transitions. Complement of second has 6 states. [2023-11-23 21:44:10,778 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 [2023-11-23 21:44:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2023-11-23 21:44:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2023-11-23 21:44:10,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 18 letters. Loop has 4 letters. [2023-11-23 21:44:10,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:10,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 22 letters. Loop has 4 letters. [2023-11-23 21:44:10,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:10,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 18 letters. Loop has 8 letters. [2023-11-23 21:44:10,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:10,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2023-11-23 21:44:10,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:10,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 36 transitions. [2023-11-23 21:44:10,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-23 21:44:10,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-23 21:44:10,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2023-11-23 21:44:10,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:10,787 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 36 transitions. [2023-11-23 21:44:10,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2023-11-23 21:44:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-11-23 21:44:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 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) [2023-11-23 21:44:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2023-11-23 21:44:10,791 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-23 21:44:10,791 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2023-11-23 21:44:10,792 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-23 21:44:10,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2023-11-23 21:44:10,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:10,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:10,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:10,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:10,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:10,794 INFO L748 eck$LassoCheckResult]: Stem: 1012#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1001#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1002#L551 assume !(main_~length~0#1 < 1); 1009#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1003#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1004#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 993#L556 assume !(main_~val~0#1 < 0); 994#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 995#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1010#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1011#L556 assume !(main_~val~0#1 < 0); 1020#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1019#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1018#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 999#L554-4 main_~j~0#1 := 0; 1000#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1013#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1015#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 996#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 997#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1014#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1005#L562-1 [2023-11-23 21:44:10,794 INFO L750 eck$LassoCheckResult]: Loop: 1005#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 1006#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1005#L562-1 [2023-11-23 21:44:10,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1068815382, now seen corresponding path program 4 times [2023-11-23 21:44:10,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:10,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747780662] [2023-11-23 21:44:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:10,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:10,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:10,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:10,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 4 times [2023-11-23 21:44:10,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:10,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400104963] [2023-11-23 21:44:10,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:10,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:10,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:10,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:10,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:10,851 INFO L85 PathProgramCache]: Analyzing trace with hash 634400049, now seen corresponding path program 1 times [2023-11-23 21:44:10,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:10,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926306749] [2023-11-23 21:44:10,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:10,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:10,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:10,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:11,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:11,299 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:11,299 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:11,299 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:11,299 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:11,300 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:11,300 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:11,300 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:11,300 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:11,300 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration8_Lasso [2023-11-23 21:44:11,300 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:11,300 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:11,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,547 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,550 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,552 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:11,846 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:11,846 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:11,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:11,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:11,848 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:11,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:11,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:11,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:11,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:11,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:11,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:11,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:11,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:11,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-23 21:44:11,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:11,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-23 21:44:11,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:11,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:11,900 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:11,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-23 21:44:11,902 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 [2023-11-23 21:44:11,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:11,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:11,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:11,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:11,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:11,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:11,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:11,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:11,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-23 21:44:11,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:11,927 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:11,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-23 21:44:11,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:11,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:11,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:11,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:11,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:11,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:11,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:11,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:11,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:11,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:11,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:11,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:11,953 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:11,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-23 21:44:11,955 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 [2023-11-23 21:44:11,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:11,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:11,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:11,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:11,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:11,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:11,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:11,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:11,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-23 21:44:11,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:11,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:11,979 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:11,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-23 21:44:11,981 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 [2023-11-23 21:44:11,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:11,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:11,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:11,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:11,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:11,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:12,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:12,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:12,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:12,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:12,036 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:12,040 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 [2023-11-23 21:44:12,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:12,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:12,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:12,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:12,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-23 21:44:12,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:12,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:12,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:12,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:12,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:12,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:12,094 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:12,096 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 [2023-11-23 21:44:12,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-23 21:44:12,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:12,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:12,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:12,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:12,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:12,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:12,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:12,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:12,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:12,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:12,129 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:12,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-23 21:44:12,131 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 [2023-11-23 21:44:12,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:12,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:12,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:12,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:12,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:12,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:12,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:12,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-23 21:44:12,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:12,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:12,174 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:12,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-23 21:44:12,176 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 [2023-11-23 21:44:12,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:12,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:12,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:12,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:12,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:12,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:12,213 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:12,231 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-11-23 21:44:12,231 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-23 21:44:12,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:12,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:12,233 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:12,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-23 21:44:12,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:12,248 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-23 21:44:12,249 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:12,249 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7#1) = 1*ULTIMATE.start_main_#t~mem7#1 Supporting invariants [1*ULTIMATE.start_main_#t~mem7#1 - 1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 4)_1 >= 0] [2023-11-23 21:44:12,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:12,286 INFO L156 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2023-11-23 21:44:12,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-23 21:44:12,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:12,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:44:12,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:12,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:44:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:12,554 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:12,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:12,607 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:12,611 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:12,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 35 [2023-11-23 21:44:12,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-11-23 21:44:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:12,648 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2023-11-23 21:44:12,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11 Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:12,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 42 transitions. Complement of second has 7 states. [2023-11-23 21:44:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 5 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:12,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:12,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2023-11-23 21:44:12,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 21 letters. Loop has 2 letters. [2023-11-23 21:44:12,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:12,748 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:12,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:12,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:12,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:12,937 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:12,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:12,955 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:12,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:12,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 35 [2023-11-23 21:44:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:12,988 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2023-11-23 21:44:12,989 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:13,036 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 5 states. [2023-11-23 21:44:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:44:13,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 21 letters. Loop has 2 letters. [2023-11-23 21:44:13,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:13,038 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:13,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:13,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:44:13,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:13,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 21:44:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:13,296 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:13,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:13,322 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:13,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:13,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 35 [2023-11-23 21:44:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,357 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2023-11-23 21:44:13,358 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11 Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:13,491 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 35 transitions. cyclomatic complexity: 11. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 52 transitions. Complement of second has 11 states. [2023-11-23 21:44:13,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:13,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:13,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2023-11-23 21:44:13,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 21 letters. Loop has 2 letters. [2023-11-23 21:44:13,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:13,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 23 letters. Loop has 2 letters. [2023-11-23 21:44:13,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:13,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 21 letters. Loop has 4 letters. [2023-11-23 21:44:13,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:13,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 52 transitions. [2023-11-23 21:44:13,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:13,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 36 states and 45 transitions. [2023-11-23 21:44:13,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 21:44:13,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:13,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2023-11-23 21:44:13,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:13,497 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2023-11-23 21:44:13,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2023-11-23 21:44:13,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2023-11-23 21:44:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 28 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2023-11-23 21:44:13,500 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 36 transitions. [2023-11-23 21:44:13,500 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2023-11-23 21:44:13,500 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-23 21:44:13,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2023-11-23 21:44:13,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:13,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:13,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:13,502 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:13,502 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:13,502 INFO L748 eck$LassoCheckResult]: Stem: 1452#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1439#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1440#L551 assume !(main_~length~0#1 < 1); 1449#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1443#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1444#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1453#L556 assume !(main_~val~0#1 < 0); 1459#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1450#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1451#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1434#L556 assume !(main_~val~0#1 < 0); 1435#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1436#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1456#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 1441#L554-4 main_~j~0#1 := 0; 1442#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1454#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1445#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1437#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1438#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1448#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1446#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1447#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1461#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1460#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1457#L562-1 [2023-11-23 21:44:13,502 INFO L750 eck$LassoCheckResult]: Loop: 1457#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 1458#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1457#L562-1 [2023-11-23 21:44:13,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:13,503 INFO L85 PathProgramCache]: Analyzing trace with hash -226958495, now seen corresponding path program 5 times [2023-11-23 21:44:13,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:13,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145704384] [2023-11-23 21:44:13,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:13,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:13,676 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:13,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145704384] [2023-11-23 21:44:13,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145704384] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:13,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214531196] [2023-11-23 21:44:13,677 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 21:44:13,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:13,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:13,678 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:13,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-23 21:44:13,759 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-11-23 21:44:13,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:44:13,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:44:13,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214531196] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:13,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:13,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2023-11-23 21:44:13,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92960043] [2023-11-23 21:44:13,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:13,944 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:13,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 5 times [2023-11-23 21:44:13,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:13,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785590035] [2023-11-23 21:44:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:13,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:13,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:13,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:14,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 21:44:14,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:44:14,004 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. cyclomatic complexity: 11 Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 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) [2023-11-23 21:44:14,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:14,121 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2023-11-23 21:44:14,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2023-11-23 21:44:14,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:14,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 36 states and 45 transitions. [2023-11-23 21:44:14,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 21:44:14,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:14,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 45 transitions. [2023-11-23 21:44:14,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:14,123 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 45 transitions. [2023-11-23 21:44:14,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 45 transitions. [2023-11-23 21:44:14,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2023-11-23 21:44:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 32 states have internal predecessors, (41), 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) [2023-11-23 21:44:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2023-11-23 21:44:14,126 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 41 transitions. [2023-11-23 21:44:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:44:14,127 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2023-11-23 21:44:14,127 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-23 21:44:14,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 41 transitions. [2023-11-23 21:44:14,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:14,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:14,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:14,129 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:14,129 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:14,129 INFO L748 eck$LassoCheckResult]: Stem: 1697#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1685#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1686#L551 assume !(main_~length~0#1 < 1); 1694#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 1689#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1690#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1698#L556 assume !(main_~val~0#1 < 0); 1709#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1695#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1696#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1710#L556 assume !(main_~val~0#1 < 0); 1712#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1711#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1699#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1680#L556 assume !(main_~val~0#1 < 0); 1681#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1682#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 1703#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 1687#L554-4 main_~j~0#1 := 0; 1688#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1700#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1691#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1683#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1684#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1701#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1702#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 1708#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 1707#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 1706#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1704#L562-1 [2023-11-23 21:44:14,129 INFO L750 eck$LassoCheckResult]: Loop: 1704#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 1705#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1704#L562-1 [2023-11-23 21:44:14,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2079857016, now seen corresponding path program 6 times [2023-11-23 21:44:14,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526201996] [2023-11-23 21:44:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 6 times [2023-11-23 21:44:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398254878] [2023-11-23 21:44:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1582798045, now seen corresponding path program 2 times [2023-11-23 21:44:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668833389] [2023-11-23 21:44:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:14,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:14,972 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:14,973 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:14,973 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:14,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:14,973 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:14,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:14,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:14,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:14,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration10_Lasso [2023-11-23 21:44:14,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:14,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:14,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,986 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,993 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:14,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:15,559 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:15,559 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:15,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,560 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-23 21:44:15,562 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 [2023-11-23 21:44:15,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:15,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:15,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:15,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-23 21:44:15,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,589 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,592 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 [2023-11-23 21:44:15,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-23 21:44:15,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:15,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:15,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:15,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,621 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-23 21:44:15,624 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 [2023-11-23 21:44:15,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:15,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:15,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,652 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-23 21:44:15,655 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 [2023-11-23 21:44:15,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:15,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:15,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,713 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,716 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 [2023-11-23 21:44:15,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:15,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:15,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:15,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-23 21:44:15,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,770 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,776 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 [2023-11-23 21:44:15,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-23 21:44:15,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:15,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:15,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:15,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,820 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,822 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 [2023-11-23 21:44:15,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-23 21:44:15,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:15,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:15,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-23 21:44:15,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,866 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-23 21:44:15,867 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 [2023-11-23 21:44:15,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:15,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:15,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-23 21:44:15,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,898 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-23 21:44:15,899 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 [2023-11-23 21:44:15,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:15,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:15,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:15,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-23 21:44:15,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,941 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-23 21:44:15,943 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 [2023-11-23 21:44:15,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:15,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:15,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:15,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:15,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:15,959 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:15,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:15,988 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-11-23 21:44:15,989 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-23 21:44:15,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:15,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,990 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-23 21:44:15,992 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:16,003 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-23 21:44:16,003 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:16,003 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7#1) = 1*ULTIMATE.start_main_#t~mem7#1 Supporting invariants [-1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 8))_1 + 1*ULTIMATE.start_main_#t~mem7#1 >= 0] [2023-11-23 21:44:16,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:16,038 INFO L156 tatePredicateManager]: 6 out of 8 supporting invariants were superfluous and have been removed [2023-11-23 21:44:16,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-23 21:44:16,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:16,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:16,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:16,210 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:16,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:16,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2023-11-23 21:44:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:16,249 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2023-11-23 21:44:16,249 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:16,282 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 44 transitions. Complement of second has 4 states. [2023-11-23 21:44:16,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:16,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2023-11-23 21:44:16,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 29 letters. Loop has 2 letters. [2023-11-23 21:44:16,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:16,286 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:16,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:16,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:16,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:16,431 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:16,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:16,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2023-11-23 21:44:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:16,463 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2023-11-23 21:44:16,463 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:16,493 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 44 transitions. Complement of second has 4 states. [2023-11-23 21:44:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:16,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2023-11-23 21:44:16,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 29 letters. Loop has 2 letters. [2023-11-23 21:44:16,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:16,495 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:16,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:16,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:16,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:16,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:16,683 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:16,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:16,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2023-11-23 21:44:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:16,715 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2023-11-23 21:44:16,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:16,805 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 58 transitions. Complement of second has 10 states. [2023-11-23 21:44:16,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:16,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2023-11-23 21:44:16,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 29 letters. Loop has 2 letters. [2023-11-23 21:44:16,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:16,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 31 letters. Loop has 2 letters. [2023-11-23 21:44:16,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:16,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 29 letters. Loop has 4 letters. [2023-11-23 21:44:16,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:16,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 58 transitions. [2023-11-23 21:44:16,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:16,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 41 states and 51 transitions. [2023-11-23 21:44:16,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 21:44:16,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:16,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2023-11-23 21:44:16,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:16,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2023-11-23 21:44:16,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2023-11-23 21:44:16,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2023-11-23 21:44:16,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 36 states have internal predecessors, (46), 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) [2023-11-23 21:44:16,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2023-11-23 21:44:16,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-11-23 21:44:16,812 INFO L428 stractBuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-11-23 21:44:16,812 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-23 21:44:16,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 46 transitions. [2023-11-23 21:44:16,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:16,812 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:16,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:16,813 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:16,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:16,813 INFO L748 eck$LassoCheckResult]: Stem: 2217#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2204#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 2205#L551 assume !(main_~length~0#1 < 1); 2214#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 2208#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 2209#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2218#L556 assume !(main_~val~0#1 < 0); 2229#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2215#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2216#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2199#L556 assume !(main_~val~0#1 < 0); 2200#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2201#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2228#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2225#L556 assume !(main_~val~0#1 < 0); 2227#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2226#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2224#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 2206#L554-4 main_~j~0#1 := 0; 2207#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2219#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2210#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 2202#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2203#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2213#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2211#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 2212#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2220#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2221#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2223#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 2235#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2234#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2232#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2230#L562-1 [2023-11-23 21:44:16,813 INFO L750 eck$LassoCheckResult]: Loop: 2230#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 2231#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2230#L562-1 [2023-11-23 21:44:16,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash -650548013, now seen corresponding path program 7 times [2023-11-23 21:44:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:16,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968424929] [2023-11-23 21:44:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:16,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:16,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968424929] [2023-11-23 21:44:16,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968424929] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:16,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770780484] [2023-11-23 21:44:16,954 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-23 21:44:16,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:16,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:16,956 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:16,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-23 21:44:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:17,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:44:17,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:17,165 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:17,267 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:17,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770780484] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:17,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:17,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2023-11-23 21:44:17,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908584331] [2023-11-23 21:44:17,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:17,268 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:17,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:17,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 7 times [2023-11-23 21:44:17,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:17,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542508833] [2023-11-23 21:44:17,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:17,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:17,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:17,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-23 21:44:17,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:44:17,318 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. cyclomatic complexity: 14 Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 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) [2023-11-23 21:44:17,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:17,478 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2023-11-23 21:44:17,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 75 transitions. [2023-11-23 21:44:17,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:17,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 44 states and 55 transitions. [2023-11-23 21:44:17,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 21:44:17,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:17,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 55 transitions. [2023-11-23 21:44:17,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:17,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-11-23 21:44:17,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 55 transitions. [2023-11-23 21:44:17,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2023-11-23 21:44:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 40 states have internal predecessors, (51), 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) [2023-11-23 21:44:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2023-11-23 21:44:17,483 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2023-11-23 21:44:17,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:44:17,484 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2023-11-23 21:44:17,484 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-23 21:44:17,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 51 transitions. [2023-11-23 21:44:17,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:17,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:17,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:17,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:17,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:17,486 INFO L748 eck$LassoCheckResult]: Stem: 2535#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2523#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 2524#L551 assume !(main_~length~0#1 < 1); 2533#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 2527#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 2528#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2536#L556 assume !(main_~val~0#1 < 0); 2558#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2557#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2537#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2518#L556 assume !(main_~val~0#1 < 0); 2519#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2520#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2534#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2556#L556 assume !(main_~val~0#1 < 0); 2555#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2554#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2553#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 2541#L556 assume !(main_~val~0#1 < 0); 2551#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 2542#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 2540#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 2525#L554-4 main_~j~0#1 := 0; 2526#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2538#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2529#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 2521#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2522#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2532#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2530#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 2531#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2552#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2550#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2546#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 2549#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 2548#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 2545#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2543#L562-1 [2023-11-23 21:44:17,487 INFO L750 eck$LassoCheckResult]: Loop: 2543#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 2544#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2543#L562-1 [2023-11-23 21:44:17,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:17,487 INFO L85 PathProgramCache]: Analyzing trace with hash -813541126, now seen corresponding path program 8 times [2023-11-23 21:44:17,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:17,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731490971] [2023-11-23 21:44:17,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:17,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:17,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:17,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 8 times [2023-11-23 21:44:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:17,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151488091] [2023-11-23 21:44:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:17,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:17,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:17,535 INFO L85 PathProgramCache]: Analyzing trace with hash -128972523, now seen corresponding path program 3 times [2023-11-23 21:44:17,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:17,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332193957] [2023-11-23 21:44:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:17,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:17,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:19,128 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:19,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:19,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:19,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:19,128 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:19,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:19,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:19,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:19,128 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration12_Lasso [2023-11-23 21:44:19,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:19,128 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:19,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,155 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:19,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:20,203 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:20,203 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:20,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,205 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,208 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 [2023-11-23 21:44:20,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-23 21:44:20,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,221 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:20,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:20,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:20,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,264 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,267 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 [2023-11-23 21:44:20,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-23 21:44:20,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-11-23 21:44:20,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,325 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-23 21:44:20,326 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 [2023-11-23 21:44:20,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-23 21:44:20,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,355 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-23 21:44:20,357 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 [2023-11-23 21:44:20,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:20,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:20,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:20,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,387 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-23 21:44:20,388 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 [2023-11-23 21:44:20,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,400 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-11-23 21:44:20,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,418 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-23 21:44:20,420 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 [2023-11-23 21:44:20,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:20,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:20,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:20,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,444 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-23 21:44:20,445 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 [2023-11-23 21:44:20,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,474 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-23 21:44:20,476 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 [2023-11-23 21:44:20,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:20,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:20,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:20,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,500 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-23 21:44:20,502 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 [2023-11-23 21:44:20,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:20,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:20,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:20,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-23 21:44:20,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,526 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-23 21:44:20,528 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 [2023-11-23 21:44:20,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-23 21:44:20,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,599 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-23 21:44:20,604 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 [2023-11-23 21:44:20,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-23 21:44:20,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,639 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-23 21:44:20,641 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 [2023-11-23 21:44:20,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2023-11-23 21:44:20,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,671 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-23 21:44:20,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:20,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:20,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,725 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,732 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 [2023-11-23 21:44:20,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-23 21:44:20,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:20,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:20,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:20,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:20,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:20,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:20,761 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:20,777 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-11-23 21:44:20,777 INFO L444 ModelExtractionUtils]: 7 out of 19 variables were initially zero. Simplification set additionally 8 variables to zero. [2023-11-23 21:44:20,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:20,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:20,779 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:20,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-23 21:44:20,780 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:20,791 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-23 21:44:20,791 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:20,791 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 12)_1) = 1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 12)_1 Supporting invariants [-1*ULTIMATE.start_main_#t~mem7#1 + 1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) (* ULTIMATE.start_main_~j~0#1 4))_1 >= 0] [2023-11-23 21:44:20,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:20,911 INFO L156 tatePredicateManager]: 17 out of 20 supporting invariants were superfluous and have been removed [2023-11-23 21:44:20,918 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#0[~arr~0!base][12] could not be translated [2023-11-23 21:44:20,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:20,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:44:20,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:21,182 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:44:21,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:21,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2023-11-23 21:44:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:21,231 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2023-11-23 21:44:21,232 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15 Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:21,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 5 states. [2023-11-23 21:44:21,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:44:21,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 37 letters. Loop has 2 letters. [2023-11-23 21:44:21,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:21,277 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:21,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:21,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:44:21,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:21,572 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:44:21,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:21,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2023-11-23 21:44:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:21,616 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.6 stem predicates 2 loop predicates [2023-11-23 21:44:21,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15 Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:21,657 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 5 states. [2023-11-23 21:44:21,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:21,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:21,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:44:21,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 37 letters. Loop has 2 letters. [2023-11-23 21:44:21,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:21,659 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:21,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:21,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:44:21,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:21,945 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:44:21,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:21,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2023-11-23 21:44:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:21,981 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2023-11-23 21:44:21,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15 Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:22,106 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 54 states and 68 transitions. Complement of second has 13 states. [2023-11-23 21:44:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 6 stem states 0 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:22,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 43 transitions. [2023-11-23 21:44:22,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 37 letters. Loop has 2 letters. [2023-11-23 21:44:22,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:22,108 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:22,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:22,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:44:22,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:22,435 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:44:22,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:22,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2023-11-23 21:44:22,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:22,471 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.6 stem predicates 2 loop predicates [2023-11-23 21:44:22,471 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15 Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:22,593 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 51 transitions. cyclomatic complexity: 15. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 54 states and 68 transitions. Complement of second has 13 states. [2023-11-23 21:44:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2023-11-23 21:44:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 44 transitions. [2023-11-23 21:44:22,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 37 letters. Loop has 2 letters. [2023-11-23 21:44:22,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:22,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 39 letters. Loop has 2 letters. [2023-11-23 21:44:22,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:22,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 37 letters. Loop has 4 letters. [2023-11-23 21:44:22,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:22,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 68 transitions. [2023-11-23 21:44:22,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:22,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 49 states and 61 transitions. [2023-11-23 21:44:22,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 21:44:22,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:22,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2023-11-23 21:44:22,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:22,598 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 61 transitions. [2023-11-23 21:44:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2023-11-23 21:44:22,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2023-11-23 21:44:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 44 states have internal predecessors, (56), 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) [2023-11-23 21:44:22,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2023-11-23 21:44:22,601 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 56 transitions. [2023-11-23 21:44:22,601 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2023-11-23 21:44:22,601 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2023-11-23 21:44:22,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 56 transitions. [2023-11-23 21:44:22,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:22,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:22,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:22,603 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:22,603 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:22,603 INFO L748 eck$LassoCheckResult]: Stem: 3420#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 3409#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 3410#L551 assume !(main_~length~0#1 < 1); 3417#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 3411#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 3412#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3402#L556 assume !(main_~val~0#1 < 0); 3403#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3404#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3418#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3419#L556 assume !(main_~val~0#1 < 0); 3439#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3436#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3435#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3434#L556 assume !(main_~val~0#1 < 0); 3433#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3432#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3431#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3428#L556 assume !(main_~val~0#1 < 0); 3430#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3429#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3427#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 3407#L554-4 main_~j~0#1 := 0; 3408#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3421#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3413#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3405#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3406#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3416#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3414#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3415#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3446#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3425#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3426#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3445#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3422#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3423#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3441#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3444#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3442#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3440#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3437#L562-1 [2023-11-23 21:44:22,604 INFO L750 eck$LassoCheckResult]: Loop: 3437#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 3438#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3437#L562-1 [2023-11-23 21:44:22,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:22,604 INFO L85 PathProgramCache]: Analyzing trace with hash 611407429, now seen corresponding path program 9 times [2023-11-23 21:44:22,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:22,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268944156] [2023-11-23 21:44:22,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:22,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 19 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:22,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:22,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268944156] [2023-11-23 21:44:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268944156] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:22,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100823911] [2023-11-23 21:44:22,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:44:22,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:22,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:22,823 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:22,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-23 21:44:22,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-23 21:44:22,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:44:22,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:44:22,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:23,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:23,217 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 32 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:23,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100823911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:23,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:23,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 20 [2023-11-23 21:44:23,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131251282] [2023-11-23 21:44:23,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:23,218 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:23,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 9 times [2023-11-23 21:44:23,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:23,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104605627] [2023-11-23 21:44:23,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:23,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:23,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:23,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 21:44:23,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:44:23,280 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. cyclomatic complexity: 17 Second operand has 20 states, 20 states have (on average 3.45) internal successors, (69), 20 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) [2023-11-23 21:44:23,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:23,468 INFO L93 Difference]: Finished difference Result 72 states and 90 transitions. [2023-11-23 21:44:23,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 90 transitions. [2023-11-23 21:44:23,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:23,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 52 states and 65 transitions. [2023-11-23 21:44:23,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 21:44:23,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:23,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 65 transitions. [2023-11-23 21:44:23,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:23,471 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 65 transitions. [2023-11-23 21:44:23,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 65 transitions. [2023-11-23 21:44:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2023-11-23 21:44:23,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 48 states have internal predecessors, (61), 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) [2023-11-23 21:44:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2023-11-23 21:44:23,474 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 61 transitions. [2023-11-23 21:44:23,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 21:44:23,475 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2023-11-23 21:44:23,475 INFO L335 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2023-11-23 21:44:23,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 61 transitions. [2023-11-23 21:44:23,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:23,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:23,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:23,477 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:23,477 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:23,477 INFO L748 eck$LassoCheckResult]: Stem: 3812#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 3801#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 3802#L551 assume !(main_~length~0#1 < 1); 3805#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 3803#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 3804#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3794#L556 assume !(main_~val~0#1 < 0); 3795#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3796#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3810#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3811#L556 assume !(main_~val~0#1 < 0); 3842#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3841#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3840#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3839#L556 assume !(main_~val~0#1 < 0); 3838#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3837#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3836#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3835#L556 assume !(main_~val~0#1 < 0); 3834#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3833#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3832#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 3818#L556 assume !(main_~val~0#1 < 0); 3830#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 3819#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 3817#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 3799#L554-4 main_~j~0#1 := 0; 3800#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3813#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3806#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3807#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3831#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3809#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3808#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3797#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3798#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3814#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3829#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3828#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3827#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3826#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3823#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 3825#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 3824#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 3822#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3816#L562-1 [2023-11-23 21:44:23,477 INFO L750 eck$LassoCheckResult]: Loop: 3816#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 3815#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3816#L562-1 [2023-11-23 21:44:23,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:23,478 INFO L85 PathProgramCache]: Analyzing trace with hash -8705172, now seen corresponding path program 10 times [2023-11-23 21:44:23,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:23,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85301914] [2023-11-23 21:44:23,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:23,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:23,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 10 times [2023-11-23 21:44:23,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:23,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814220035] [2023-11-23 21:44:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:23,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:23,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:23,588 INFO L85 PathProgramCache]: Analyzing trace with hash 224265991, now seen corresponding path program 4 times [2023-11-23 21:44:23,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:23,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773406070] [2023-11-23 21:44:23,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:23,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:23,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:25,122 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:25,122 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:25,122 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:25,122 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:25,122 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:25,122 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:25,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:25,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:25,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration14_Lasso [2023-11-23 21:44:25,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:25,122 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:25,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,401 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,420 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,425 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:25,767 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:25,767 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:25,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:25,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:25,768 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:25,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-23 21:44:25,770 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 [2023-11-23 21:44:25,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:25,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:25,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:25,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:25,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:25,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:25,794 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:25,817 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2023-11-23 21:44:25,818 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. [2023-11-23 21:44:25,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:25,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:25,819 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:25,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-23 21:44:25,820 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:25,832 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-23 21:44:25,832 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:25,832 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7#1) = 1*ULTIMATE.start_main_#t~mem7#1 Supporting invariants [-1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 16)_1 + 1*ULTIMATE.start_main_#t~mem7#1 >= 0] [2023-11-23 21:44:25,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2023-11-23 21:44:25,892 INFO L156 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2023-11-23 21:44:25,896 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-23 21:44:25,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:25,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:44:25,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:26,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:26,255 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:26,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:26,281 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:26,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:26,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 35 [2023-11-23 21:44:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:26,309 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2023-11-23 21:44:26,309 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 61 transitions. cyclomatic complexity: 18 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2023-11-23 21:44:26,362 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 61 transitions. cyclomatic complexity: 18. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 52 states and 64 transitions. Complement of second has 5 states. [2023-11-23 21:44:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:26,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2023-11-23 21:44:26,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:44:26,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 45 letters. Loop has 2 letters. [2023-11-23 21:44:26,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:26,363 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:26,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:26,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:44:26,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:26,724 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:26,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:26,741 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:26,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:26,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 35 [2023-11-23 21:44:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:26,771 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.7 stem predicates 2 loop predicates [2023-11-23 21:44:26,771 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 61 transitions. cyclomatic complexity: 18 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2023-11-23 21:44:26,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 61 transitions. cyclomatic complexity: 18. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 52 states and 64 transitions. Complement of second has 5 states. [2023-11-23 21:44:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:26,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2023-11-23 21:44:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:44:26,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 45 letters. Loop has 2 letters. [2023-11-23 21:44:26,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:26,826 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:26,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:26,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 21:44:26,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:27,173 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:27,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:27,184 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:27,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:27,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 35 [2023-11-23 21:44:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:27,215 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2023-11-23 21:44:27,215 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 61 transitions. cyclomatic complexity: 18 Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2023-11-23 21:44:27,372 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 61 transitions. cyclomatic complexity: 18. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 62 states and 78 transitions. Complement of second has 15 states. [2023-11-23 21:44:27,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) [2023-11-23 21:44:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 50 transitions. [2023-11-23 21:44:27,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 50 transitions. Stem has 45 letters. Loop has 2 letters. [2023-11-23 21:44:27,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:27,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 50 transitions. Stem has 47 letters. Loop has 2 letters. [2023-11-23 21:44:27,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:27,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 50 transitions. Stem has 45 letters. Loop has 4 letters. [2023-11-23 21:44:27,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:27,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 78 transitions. [2023-11-23 21:44:27,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:27,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 57 states and 71 transitions. [2023-11-23 21:44:27,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 21:44:27,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:27,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 71 transitions. [2023-11-23 21:44:27,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:27,377 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 71 transitions. [2023-11-23 21:44:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 71 transitions. [2023-11-23 21:44:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2023-11-23 21:44:27,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 52 states have internal predecessors, (66), 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) [2023-11-23 21:44:27,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2023-11-23 21:44:27,380 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 66 transitions. [2023-11-23 21:44:27,380 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2023-11-23 21:44:27,380 INFO L335 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2023-11-23 21:44:27,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 66 transitions. [2023-11-23 21:44:27,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:27,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:27,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:27,382 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:27,382 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:27,382 INFO L748 eck$LassoCheckResult]: Stem: 4569#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 4557#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 4558#L551 assume !(main_~length~0#1 < 1); 4565#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 4559#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 4560#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4568#L556 assume !(main_~val~0#1 < 0); 4585#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 4566#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 4567#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4550#L556 assume !(main_~val~0#1 < 0); 4551#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 4552#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 4584#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4583#L556 assume !(main_~val~0#1 < 0); 4582#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 4581#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 4580#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4579#L556 assume !(main_~val~0#1 < 0); 4578#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 4577#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 4576#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 4573#L556 assume !(main_~val~0#1 < 0); 4575#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 4574#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 4572#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 4555#L554-4 main_~j~0#1 := 0; 4556#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 4570#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4561#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 4553#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 4554#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 4564#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4562#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 4563#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 4602#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 4601#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4600#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 4599#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 4598#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 4597#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4596#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 4595#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 4594#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 4593#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4589#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 4592#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 4591#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 4588#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4586#L562-1 [2023-11-23 21:44:27,382 INFO L750 eck$LassoCheckResult]: Loop: 4586#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 4587#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4586#L562-1 [2023-11-23 21:44:27,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:27,383 INFO L85 PathProgramCache]: Analyzing trace with hash 771202999, now seen corresponding path program 11 times [2023-11-23 21:44:27,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:27,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025836307] [2023-11-23 21:44:27,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:27,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 33 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:27,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:27,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025836307] [2023-11-23 21:44:27,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025836307] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:27,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372877503] [2023-11-23 21:44:27,663 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 21:44:27,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:27,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:27,664 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:27,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-23 21:44:27,775 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-23 21:44:27,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:44:27,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 21:44:27,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 50 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:28,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 50 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:28,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372877503] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:28,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:28,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2023-11-23 21:44:28,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975848049] [2023-11-23 21:44:28,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:28,168 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:28,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:28,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 11 times [2023-11-23 21:44:28,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:28,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722438700] [2023-11-23 21:44:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:28,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:28,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:28,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-23 21:44:28,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2023-11-23 21:44:28,226 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. cyclomatic complexity: 20 Second operand has 23 states, 23 states have (on average 3.5217391304347827) internal successors, (81), 23 states have internal predecessors, (81), 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) [2023-11-23 21:44:28,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:28,435 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2023-11-23 21:44:28,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 105 transitions. [2023-11-23 21:44:28,436 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:28,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 60 states and 75 transitions. [2023-11-23 21:44:28,437 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 21:44:28,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:28,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 75 transitions. [2023-11-23 21:44:28,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:28,437 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 75 transitions. [2023-11-23 21:44:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 75 transitions. [2023-11-23 21:44:28,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2023-11-23 21:44:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 57 states have (on average 1.2456140350877194) internal successors, (71), 56 states have internal predecessors, (71), 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) [2023-11-23 21:44:28,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2023-11-23 21:44:28,441 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 71 transitions. [2023-11-23 21:44:28,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:44:28,441 INFO L428 stractBuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2023-11-23 21:44:28,442 INFO L335 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2023-11-23 21:44:28,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 71 transitions. [2023-11-23 21:44:28,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:28,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:28,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:28,443 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:28,443 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:28,444 INFO L748 eck$LassoCheckResult]: Stem: 5032#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5020#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5021#L551 assume !(main_~length~0#1 < 1); 5030#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 5024#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 5025#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5033#L556 assume !(main_~val~0#1 < 0); 5071#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5070#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5034#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5015#L556 assume !(main_~val~0#1 < 0); 5016#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5017#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5031#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5069#L556 assume !(main_~val~0#1 < 0); 5068#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5067#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5066#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5065#L556 assume !(main_~val~0#1 < 0); 5064#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5063#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5062#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5061#L556 assume !(main_~val~0#1 < 0); 5060#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5059#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5058#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5040#L556 assume !(main_~val~0#1 < 0); 5057#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5041#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5039#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 5022#L554-4 main_~j~0#1 := 0; 5023#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5035#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5026#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5027#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5056#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5029#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5028#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5018#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5019#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5036#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5038#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5055#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5054#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5053#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5052#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5051#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5050#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5049#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5045#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5048#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5047#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5044#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5042#L562-1 [2023-11-23 21:44:28,444 INFO L750 eck$LassoCheckResult]: Loop: 5042#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 5043#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5042#L562-1 [2023-11-23 21:44:28,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:28,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1992908254, now seen corresponding path program 12 times [2023-11-23 21:44:28,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:28,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580165818] [2023-11-23 21:44:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:28,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:28,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:28,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 12 times [2023-11-23 21:44:28,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:28,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164445552] [2023-11-23 21:44:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:28,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,502 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:28,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:28,505 INFO L85 PathProgramCache]: Analyzing trace with hash -370580231, now seen corresponding path program 5 times [2023-11-23 21:44:28,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:28,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958573203] [2023-11-23 21:44:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:28,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:28,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:30,836 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:30,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:30,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:30,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:30,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:30,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:30,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:30,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:30,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration16_Lasso [2023-11-23 21:44:30,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:30,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:30,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:30,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:31,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:31,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:31,592 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:31,592 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:31,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,596 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,598 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 [2023-11-23 21:44:31,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:31,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:31,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:31,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-11-23 21:44:31,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:31,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,643 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,648 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 [2023-11-23 21:44:31,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-23 21:44:31,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:31,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:31,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:31,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:31,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,675 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2023-11-23 21:44:31,676 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 [2023-11-23 21:44:31,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:31,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:31,691 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:31,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,711 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2023-11-23 21:44:31,713 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 [2023-11-23 21:44:31,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:31,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:31,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:31,724 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:31,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,737 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2023-11-23 21:44:31,738 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 [2023-11-23 21:44:31,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:31,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:31,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2023-11-23 21:44:31,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,792 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2023-11-23 21:44:31,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:31,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:31,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:31,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:31,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,853 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2023-11-23 21:44:31,854 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 [2023-11-23 21:44:31,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:31,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:31,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:31,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:31,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,879 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2023-11-23 21:44:31,880 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 [2023-11-23 21:44:31,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:31,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:31,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:31,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2023-11-23 21:44:31,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,920 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2023-11-23 21:44:31,922 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 [2023-11-23 21:44:31,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:31,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:31,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:31,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:31,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:31,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,947 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:31,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2023-11-23 21:44:31,949 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 [2023-11-23 21:44:31,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:31,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:31,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:31,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:31,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:31,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:31,973 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:31,994 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2023-11-23 21:44:31,994 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-23 21:44:31,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:31,999 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:32,004 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:32,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2023-11-23 21:44:32,039 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-23 21:44:32,039 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:32,040 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7#1) = 1*ULTIMATE.start_main_#t~mem7#1 Supporting invariants [-1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 20))_1 + 1*ULTIMATE.start_main_#t~mem7#1 >= 0] [2023-11-23 21:44:32,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:32,086 INFO L156 tatePredicateManager]: 9 out of 11 supporting invariants were superfluous and have been removed [2023-11-23 21:44:32,091 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-11-23 21:44:32,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:32,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:44:32,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:32,315 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:32,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:32,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2023-11-23 21:44:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:32,345 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2023-11-23 21:44:32,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 21 Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 21:44:32,373 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 21. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 60 states and 74 transitions. Complement of second has 4 states. [2023-11-23 21:44:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 21:44:32,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2023-11-23 21:44:32,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 53 letters. Loop has 2 letters. [2023-11-23 21:44:32,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:32,375 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:32,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:32,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:44:32,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:32,612 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:32,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:32,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2023-11-23 21:44:32,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:32,652 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.7 stem predicates 2 loop predicates [2023-11-23 21:44:32,653 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 21 Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 21:44:32,690 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 21. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 60 states and 74 transitions. Complement of second has 4 states. [2023-11-23 21:44:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 21:44:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2023-11-23 21:44:32,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 53 letters. Loop has 2 letters. [2023-11-23 21:44:32,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:32,692 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:32,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:32,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-23 21:44:32,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:32,940 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:44:32,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:32,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2023-11-23 21:44:33,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2023-11-23 21:44:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:33,010 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2023-11-23 21:44:33,010 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 21 Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 21:44:33,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 21. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 70 states and 88 transitions. Complement of second has 16 states. [2023-11-23 21:44:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:33,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2023-11-23 21:44:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 56 transitions. [2023-11-23 21:44:33,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 53 letters. Loop has 2 letters. [2023-11-23 21:44:33,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:33,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 55 letters. Loop has 2 letters. [2023-11-23 21:44:33,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:33,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 53 letters. Loop has 4 letters. [2023-11-23 21:44:33,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:33,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 88 transitions. [2023-11-23 21:44:33,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:33,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 65 states and 81 transitions. [2023-11-23 21:44:33,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 21:44:33,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:33,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 81 transitions. [2023-11-23 21:44:33,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:33,177 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 81 transitions. [2023-11-23 21:44:33,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 81 transitions. [2023-11-23 21:44:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2023-11-23 21:44:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 60 states have internal predecessors, (76), 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) [2023-11-23 21:44:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2023-11-23 21:44:33,179 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 76 transitions. [2023-11-23 21:44:33,179 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 76 transitions. [2023-11-23 21:44:33,179 INFO L335 stractBuchiCegarLoop]: ======== Iteration 17 ============ [2023-11-23 21:44:33,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 76 transitions. [2023-11-23 21:44:33,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:33,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:33,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:33,184 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:33,184 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:33,184 INFO L748 eck$LassoCheckResult]: Stem: 5893#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5881#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5882#L551 assume !(main_~length~0#1 < 1); 5887#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 5885#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 5886#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5876#L556 assume !(main_~val~0#1 < 0); 5877#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5878#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5892#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5894#L556 assume !(main_~val~0#1 < 0); 5916#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5915#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5914#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5913#L556 assume !(main_~val~0#1 < 0); 5912#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5911#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5910#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5909#L556 assume !(main_~val~0#1 < 0); 5908#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5907#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5906#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5905#L556 assume !(main_~val~0#1 < 0); 5904#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5903#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5902#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 5899#L556 assume !(main_~val~0#1 < 0); 5901#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 5900#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 5898#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 5883#L554-4 main_~j~0#1 := 0; 5884#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5895#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5888#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5879#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5880#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5891#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5889#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5890#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5936#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5935#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5934#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5933#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5932#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5931#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5930#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5929#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5928#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5927#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5926#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5925#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5924#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5923#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5918#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 5922#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 5921#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 5917#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5897#L562-1 [2023-11-23 21:44:33,185 INFO L750 eck$LassoCheckResult]: Loop: 5897#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 5896#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 5897#L562-1 [2023-11-23 21:44:33,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:33,185 INFO L85 PathProgramCache]: Analyzing trace with hash 354634025, now seen corresponding path program 13 times [2023-11-23 21:44:33,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:33,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405389822] [2023-11-23 21:44:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:33,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 51 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:33,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:33,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405389822] [2023-11-23 21:44:33,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405389822] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:33,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780527787] [2023-11-23 21:44:33,539 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-23 21:44:33,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:33,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:33,540 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:33,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-23 21:44:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:33,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:44:33,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 72 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:33,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:34,105 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 72 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:34,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780527787] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:34,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:34,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 26 [2023-11-23 21:44:34,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738358770] [2023-11-23 21:44:34,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:34,106 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:34,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:34,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 13 times [2023-11-23 21:44:34,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:34,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901166401] [2023-11-23 21:44:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:34,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,127 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:34,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:34,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 21:44:34,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2023-11-23 21:44:34,174 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. cyclomatic complexity: 23 Second operand has 26 states, 26 states have (on average 3.576923076923077) internal successors, (93), 26 states have internal predecessors, (93), 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) [2023-11-23 21:44:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:34,440 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions. [2023-11-23 21:44:34,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 120 transitions. [2023-11-23 21:44:34,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:34,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 68 states and 85 transitions. [2023-11-23 21:44:34,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 21:44:34,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:34,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 85 transitions. [2023-11-23 21:44:34,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:34,443 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 85 transitions. [2023-11-23 21:44:34,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 85 transitions. [2023-11-23 21:44:34,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2023-11-23 21:44:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.2461538461538462) internal successors, (81), 64 states have internal predecessors, (81), 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) [2023-11-23 21:44:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 81 transitions. [2023-11-23 21:44:34,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 65 states and 81 transitions. [2023-11-23 21:44:34,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 21:44:34,454 INFO L428 stractBuchiCegarLoop]: Abstraction has 65 states and 81 transitions. [2023-11-23 21:44:34,454 INFO L335 stractBuchiCegarLoop]: ======== Iteration 18 ============ [2023-11-23 21:44:34,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 81 transitions. [2023-11-23 21:44:34,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:34,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:34,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:34,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:34,455 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:34,456 INFO L748 eck$LassoCheckResult]: Stem: 6431#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6419#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 6420#L551 assume !(main_~length~0#1 < 1); 6429#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 6423#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 6424#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6432#L556 assume !(main_~val~0#1 < 0); 6478#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 6477#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6433#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6414#L556 assume !(main_~val~0#1 < 0); 6415#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 6416#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6430#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6476#L556 assume !(main_~val~0#1 < 0); 6475#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 6474#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6473#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6472#L556 assume !(main_~val~0#1 < 0); 6471#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 6470#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6469#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6468#L556 assume !(main_~val~0#1 < 0); 6467#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 6466#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6465#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6464#L556 assume !(main_~val~0#1 < 0); 6463#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 6462#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6461#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 6439#L556 assume !(main_~val~0#1 < 0); 6460#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 6440#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6438#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 6421#L554-4 main_~j~0#1 := 0; 6422#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 6434#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6425#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 6426#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 6459#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 6428#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6427#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 6417#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 6418#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 6435#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6437#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 6458#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 6457#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 6456#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6455#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 6454#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 6453#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 6452#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6451#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 6450#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 6449#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 6448#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6444#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 6447#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 6446#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 6443#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6441#L562-1 [2023-11-23 21:44:34,456 INFO L750 eck$LassoCheckResult]: Loop: 6441#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 6442#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 6441#L562-1 [2023-11-23 21:44:34,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1573122128, now seen corresponding path program 14 times [2023-11-23 21:44:34,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:34,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298882694] [2023-11-23 21:44:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:34,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:34,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 14 times [2023-11-23 21:44:34,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:34,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740656372] [2023-11-23 21:44:34,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:34,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:34,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash -58121493, now seen corresponding path program 6 times [2023-11-23 21:44:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:34,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362698652] [2023-11-23 21:44:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:34,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:37,498 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:37,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:37,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:37,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:37,499 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:37,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:37,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:37,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:37,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration18_Lasso [2023-11-23 21:44:37,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:37,499 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:37,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,517 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,542 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:37,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:38,231 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:38,231 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:38,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,238 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2023-11-23 21:44:38,240 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 [2023-11-23 21:44:38,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:38,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:38,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:38,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,266 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,268 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 [2023-11-23 21:44:38,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2023-11-23 21:44:38,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,297 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2023-11-23 21:44:38,299 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 [2023-11-23 21:44:38,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:38,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:38,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:38,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,324 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2023-11-23 21:44:38,326 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 [2023-11-23 21:44:38,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:38,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:38,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:38,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,351 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2023-11-23 21:44:38,352 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 [2023-11-23 21:44:38,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,364 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2023-11-23 21:44:38,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,379 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2023-11-23 21:44:38,382 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 [2023-11-23 21:44:38,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:38,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:38,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:38,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,415 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2023-11-23 21:44:38,441 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 [2023-11-23 21:44:38,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,470 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2023-11-23 21:44:38,472 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 [2023-11-23 21:44:38,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:38,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:38,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:38,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,498 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2023-11-23 21:44:38,500 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 [2023-11-23 21:44:38,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:38,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:38,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:38,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,541 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2023-11-23 21:44:38,543 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 [2023-11-23 21:44:38,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2023-11-23 21:44:38,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,599 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2023-11-23 21:44:38,600 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 [2023-11-23 21:44:38,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:38,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:38,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:38,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,651 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2023-11-23 21:44:38,652 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 [2023-11-23 21:44:38,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2023-11-23 21:44:38,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,680 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2023-11-23 21:44:38,681 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 [2023-11-23 21:44:38,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,692 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,692 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,706 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2023-11-23 21:44:38,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,718 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2023-11-23 21:44:38,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:38,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,731 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2023-11-23 21:44:38,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,762 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2023-11-23 21:44:38,764 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 [2023-11-23 21:44:38,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:38,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2023-11-23 21:44:38,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,792 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2023-11-23 21:44:38,794 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 [2023-11-23 21:44:38,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:38,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:38,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:38,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:38,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:38,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:38,832 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 21:44:38,846 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-11-23 21:44:38,846 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-11-23 21:44:38,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:38,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,847 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2023-11-23 21:44:38,848 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 21:44:38,859 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-23 21:44:38,859 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 21:44:38,859 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 24)_1) = 1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 24)_1 Supporting invariants [1*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~arr~0#1.base) 24)_1 - 1*ULTIMATE.start_main_#t~mem7#1 >= 0] [2023-11-23 21:44:38,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,902 INFO L156 tatePredicateManager]: 10 out of 12 supporting invariants were superfluous and have been removed [2023-11-23 21:44:38,907 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#0[~arr~0!base][24] could not be translated [2023-11-23 21:44:38,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:38,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:44:38,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:39,327 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:44:39,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:39,336 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:39,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:39,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 38 [2023-11-23 21:44:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:39,366 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2023-11-23 21:44:39,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24 Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:39,418 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) Result 68 states and 84 transitions. Complement of second has 5 states. [2023-11-23 21:44:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:39,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:44:39,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 61 letters. Loop has 2 letters. [2023-11-23 21:44:39,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:39,421 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:39,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:39,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:44:39,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:39,818 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:44:39,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:39,828 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:39,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:39,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 38 [2023-11-23 21:44:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:39,859 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.9 stem predicates 2 loop predicates [2023-11-23 21:44:39,859 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24 Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:39,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) Result 68 states and 84 transitions. Complement of second has 5 states. [2023-11-23 21:44:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-23 21:44:39,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 21:44:39,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 61 letters. Loop has 2 letters. [2023-11-23 21:44:39,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:39,912 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:39,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:39,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:44:39,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:40,361 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:44:40,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:40,371 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:40,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:40,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 38 [2023-11-23 21:44:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:40,409 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2023-11-23 21:44:40,409 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24 Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:40,609 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) Result 78 states and 98 transitions. Complement of second has 19 states. [2023-11-23 21:44:40,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 9 stem states 0 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:40,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 61 transitions. [2023-11-23 21:44:40,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 61 transitions. Stem has 61 letters. Loop has 2 letters. [2023-11-23 21:44:40,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:40,611 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 21:44:40,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:40,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:44:40,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:40,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:41,030 WARN L260 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 21:44:41,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:41,038 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 21:44:41,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 21:44:41,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 38 [2023-11-23 21:44:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:41,078 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.9 stem predicates 2 loop predicates [2023-11-23 21:44:41,078 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24 Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:41,303 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 81 transitions. cyclomatic complexity: 24. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) Result 78 states and 98 transitions. Complement of second has 19 states. [2023-11-23 21:44:41,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 9 stem states 1 non-accepting loop states 2 accepting loop states [2023-11-23 21:44:41,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 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) [2023-11-23 21:44:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 62 transitions. [2023-11-23 21:44:41,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 62 transitions. Stem has 61 letters. Loop has 2 letters. [2023-11-23 21:44:41,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:41,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 62 transitions. Stem has 63 letters. Loop has 2 letters. [2023-11-23 21:44:41,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:41,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 62 transitions. Stem has 61 letters. Loop has 4 letters. [2023-11-23 21:44:41,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 21:44:41,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 98 transitions. [2023-11-23 21:44:41,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:41,306 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 73 states and 91 transitions. [2023-11-23 21:44:41,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 21:44:41,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:41,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 91 transitions. [2023-11-23 21:44:41,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:41,307 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 91 transitions. [2023-11-23 21:44:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 91 transitions. [2023-11-23 21:44:41,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2023-11-23 21:44:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.2463768115942029) internal successors, (86), 68 states have internal predecessors, (86), 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) [2023-11-23 21:44:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2023-11-23 21:44:41,314 INFO L240 hiAutomatonCegarLoop]: Abstraction has 69 states and 86 transitions. [2023-11-23 21:44:41,314 INFO L428 stractBuchiCegarLoop]: Abstraction has 69 states and 86 transitions. [2023-11-23 21:44:41,314 INFO L335 stractBuchiCegarLoop]: ======== Iteration 19 ============ [2023-11-23 21:44:41,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 86 transitions. [2023-11-23 21:44:41,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:41,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:41,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:41,316 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:41,316 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:41,316 INFO L748 eck$LassoCheckResult]: Stem: 7722#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7709#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7710#L551 assume !(main_~length~0#1 < 1); 7719#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 7713#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 7714#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7723#L556 assume !(main_~val~0#1 < 0); 7747#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 7720#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 7721#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7704#L556 assume !(main_~val~0#1 < 0); 7705#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 7706#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 7746#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7745#L556 assume !(main_~val~0#1 < 0); 7744#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 7743#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 7742#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7741#L556 assume !(main_~val~0#1 < 0); 7740#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 7739#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 7738#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7737#L556 assume !(main_~val~0#1 < 0); 7736#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 7735#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 7734#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7733#L556 assume !(main_~val~0#1 < 0); 7732#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 7731#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 7730#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 7727#L556 assume !(main_~val~0#1 < 0); 7729#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 7728#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 7726#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 7711#L554-4 main_~j~0#1 := 0; 7712#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7724#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7715#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7707#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7708#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7718#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7716#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7717#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7772#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7771#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7770#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7769#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7768#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7767#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7766#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7765#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7764#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7763#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7762#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7761#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7760#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7759#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7758#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7757#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7756#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7755#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7751#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 7754#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7753#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 7750#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7748#L562-1 [2023-11-23 21:44:41,316 INFO L750 eck$LassoCheckResult]: Loop: 7748#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 7749#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 7748#L562-1 [2023-11-23 21:44:41,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:41,317 INFO L85 PathProgramCache]: Analyzing trace with hash -20229477, now seen corresponding path program 15 times [2023-11-23 21:44:41,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:41,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124552158] [2023-11-23 21:44:41,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:41,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:41,753 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 73 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:41,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:41,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124552158] [2023-11-23 21:44:41,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124552158] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:41,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128233227] [2023-11-23 21:44:41,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:44:41,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:41,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:41,755 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:41,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-23 21:44:41,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-23 21:44:41,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:44:41,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 21:44:41,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 98 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:42,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 98 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:42,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128233227] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:42,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:44:42,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 29 [2023-11-23 21:44:42,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509591056] [2023-11-23 21:44:42,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:42,418 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 21:44:42,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:42,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 15 times [2023-11-23 21:44:42,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:42,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685137255] [2023-11-23 21:44:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:42,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:42,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-23 21:44:42,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2023-11-23 21:44:42,476 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. cyclomatic complexity: 26 Second operand has 29 states, 29 states have (on average 3.6206896551724137) internal successors, (105), 29 states have internal predecessors, (105), 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) [2023-11-23 21:44:42,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:42,798 INFO L93 Difference]: Finished difference Result 108 states and 135 transitions. [2023-11-23 21:44:42,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 135 transitions. [2023-11-23 21:44:42,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:42,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 76 states and 95 transitions. [2023-11-23 21:44:42,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-23 21:44:42,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-23 21:44:42,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 95 transitions. [2023-11-23 21:44:42,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 21:44:42,801 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 95 transitions. [2023-11-23 21:44:42,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 95 transitions. [2023-11-23 21:44:42,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2023-11-23 21:44:42,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 72 states have internal predecessors, (91), 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) [2023-11-23 21:44:42,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2023-11-23 21:44:42,803 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 91 transitions. [2023-11-23 21:44:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-23 21:44:42,804 INFO L428 stractBuchiCegarLoop]: Abstraction has 73 states and 91 transitions. [2023-11-23 21:44:42,804 INFO L335 stractBuchiCegarLoop]: ======== Iteration 20 ============ [2023-11-23 21:44:42,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 91 transitions. [2023-11-23 21:44:42,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-23 21:44:42,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 21:44:42,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 21:44:42,806 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:42,806 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-23 21:44:42,806 INFO L748 eck$LassoCheckResult]: Stem: 8333#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8322#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet5#1, main_#t~post4#1, main_#t~mem8#1, main_#t~post9#1, main_#t~mem7#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;havoc main_#t~nondet2#1;main_~length~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8323#L551 assume !(main_~length~0#1 < 1); 8326#L551-2 call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1 % 18446744073709551616);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset; 8324#L553 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 8325#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8315#L556 assume !(main_~val~0#1 < 0); 8316#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8317#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8331#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8332#L556 assume !(main_~val~0#1 < 0); 8387#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8386#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8385#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8384#L556 assume !(main_~val~0#1 < 0); 8383#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8382#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8381#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8380#L556 assume !(main_~val~0#1 < 0); 8379#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8378#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8377#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8376#L556 assume !(main_~val~0#1 < 0); 8375#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8374#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8373#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8372#L556 assume !(main_~val~0#1 < 0); 8371#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8370#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8369#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8368#L556 assume !(main_~val~0#1 < 0); 8367#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8366#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8365#L554-3 assume !!(main_~i~0#1 < main_~length~0#1);havoc main_#t~nondet5#1;main_~val~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8340#L556 assume !(main_~val~0#1 < 0); 8364#L556-2 call write~int#0(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 8341#L554-2 main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 8339#L554-3 assume !(main_~i~0#1 < main_~length~0#1); 8320#L554-4 main_~j~0#1 := 0; 8321#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8334#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8327#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 8318#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8319#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8330#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8328#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 8329#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8335#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8336#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8363#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 8362#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8361#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8360#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8359#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 8358#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8357#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8356#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8355#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 8354#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8353#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8352#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8351#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 8350#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8349#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8348#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8345#L562-1 assume !(main_#t~mem7#1 > 0);havoc main_#t~mem7#1; 8347#L561-2 main_#t~post6#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8346#L561-3 assume !!(main_~j~0#1 < main_~length~0#1); 8344#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8338#L562-1 [2023-11-23 21:44:42,807 INFO L750 eck$LassoCheckResult]: Loop: 8338#L562-1 assume !!(main_#t~mem7#1 > 0);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post9#1 := main_#t~mem8#1;call write~int#0(main_#t~post9#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem8#1;havoc main_#t~post9#1; 8337#L562-3 call main_#t~mem7#1 := read~int#0(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 8338#L562-1 [2023-11-23 21:44:42,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:42,807 INFO L85 PathProgramCache]: Analyzing trace with hash -498998590, now seen corresponding path program 16 times [2023-11-23 21:44:42,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:42,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126684984] [2023-11-23 21:44:42,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:42,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:42,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2652, now seen corresponding path program 16 times [2023-11-23 21:44:42,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:42,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97745522] [2023-11-23 21:44:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:42,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:42,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:42,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1498693853, now seen corresponding path program 7 times [2023-11-23 21:44:42,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:42,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324915037] [2023-11-23 21:44:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:42,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:44:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:44:42,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:44:48,399 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 276 DAG size of output: 205 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-23 21:44:49,338 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 21:44:49,338 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 21:44:49,338 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 21:44:49,338 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 21:44:49,338 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 21:44:49,338 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:49,338 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 21:44:49,339 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 21:44:49,339 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration20_Lasso [2023-11-23 21:44:49,339 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 21:44:49,339 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 21:44:49,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,359 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:49,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 21:44:52,260 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 21:44:52,261 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 21:44:52,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,262 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2023-11-23 21:44:52,264 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 [2023-11-23 21:44:52,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:52,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:52,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:52,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2023-11-23 21:44:52,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,289 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2023-11-23 21:44:52,291 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 [2023-11-23 21:44:52,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:52,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:52,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:52,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2023-11-23 21:44:52,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,315 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2023-11-23 21:44:52,316 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 [2023-11-23 21:44:52,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:52,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:52,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:52,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2023-11-23 21:44:52,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,364 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2023-11-23 21:44:52,365 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 [2023-11-23 21:44:52,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,396 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2023-11-23 21:44:52,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:52,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:52,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:52,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:52,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2023-11-23 21:44:52,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,422 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2023-11-23 21:44:52,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:52,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:52,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:52,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:52,436 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,448 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,452 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 [2023-11-23 21:44:52,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2023-11-23 21:44:52,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,505 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,508 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 [2023-11-23 21:44:52,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2023-11-23 21:44:52,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,567 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,572 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 [2023-11-23 21:44:52,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2023-11-23 21:44:52,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,617 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2023-11-23 21:44:52,618 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 [2023-11-23 21:44:52,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:52,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:52,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:52,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,643 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2023-11-23 21:44:52,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:52,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 21:44:52,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 21:44:52,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 21:44:52,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,668 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2023-11-23 21:44:52,669 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 [2023-11-23 21:44:52,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,682 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,700 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2023-11-23 21:44:52,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:52,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2023-11-23 21:44:52,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,730 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2023-11-23 21:44:52,731 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 [2023-11-23 21:44:52,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,759 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2023-11-23 21:44:52,760 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 [2023-11-23 21:44:52,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,773 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Ended with exit code 0 [2023-11-23 21:44:52,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,793 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 21:44:52,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2023-11-23 21:44:52,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Ended with exit code 0 [2023-11-23 21:44:52,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,823 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2023-11-23 21:44:52,824 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 [2023-11-23 21:44:52,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,856 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2023-11-23 21:44:52,858 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 [2023-11-23 21:44:52,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 21:44:52,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 21:44:52,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 21:44:52,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 21:44:52,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 21:44:52,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 21:44:52,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 21:44:52,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:52,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 21:44:52,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:52,891 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:52,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b34cf0b-f423-4e59-9702-f94566af7b41/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2023-11-23 21:44:52,893 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