./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d628f3524885345eb9e2318f2d0dbb026e233c3bcc51319b2ad8fc1a71d35580 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:21:46,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:21:46,586 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:21:46,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:21:46,596 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:21:46,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:21:46,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:21:46,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:21:46,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:21:46,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:21:46,648 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:21:46,649 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:21:46,650 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:21:46,651 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:21:46,652 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:21:46,653 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:21:46,653 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:21:46,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:21:46,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:21:46,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:21:46,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:21:46,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:21:46,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:21:46,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:21:46,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:21:46,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:21:46,661 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:21:46,662 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:21:46,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:21:46,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:21:46,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:21:46,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:21:46,665 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:21:46,666 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_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d628f3524885345eb9e2318f2d0dbb026e233c3bcc51319b2ad8fc1a71d35580 [2023-11-06 22:21:47,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:21:47,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:21:47,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:21:47,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:21:47,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:21:47,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i [2023-11-06 22:21:50,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:21:50,452 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:21:50,453 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/sv-benchmarks/c/termination-memory-alloca/java_Sequence-alloca.i [2023-11-06 22:21:50,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/data/4d99e750f/a8d24f2351ee4c93a553d71abbb40991/FLAG4b7ce0d55 [2023-11-06 22:21:50,490 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/data/4d99e750f/a8d24f2351ee4c93a553d71abbb40991 [2023-11-06 22:21:50,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:21:50,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:21:50,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:50,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:21:50,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:21:50,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:50,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d61e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50, skipping insertion in model container [2023-11-06 22:21:50,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:50,546 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:21:50,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:50,869 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:21:50,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:50,976 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:21:50,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50 WrapperNode [2023-11-06 22:21:50,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:50,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:50,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:21:50,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:21:50,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,021 INFO L138 Inliner]: procedures = 109, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-06 22:21:51,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:51,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:21:51,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:21:51,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:21:51,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:21:51,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:21:51,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:21:51,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:21:51,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (1/1) ... [2023-11-06 22:21:51,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:51,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:51,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:51,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:21:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:21:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:21:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:21:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:21:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:21:51,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:21:51,270 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:21:51,272 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:21:51,477 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:21:51,483 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:21:51,484 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:21:51,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:51 BoogieIcfgContainer [2023-11-06 22:21:51,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:21:51,488 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:21:51,488 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:21:51,492 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:21:51,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:21:51,494 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:21:50" (1/3) ... [2023-11-06 22:21:51,495 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15786343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:21:51, skipping insertion in model container [2023-11-06 22:21:51,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:21:51,496 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:50" (2/3) ... [2023-11-06 22:21:51,496 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15786343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:21:51, skipping insertion in model container [2023-11-06 22:21:51,496 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:21:51,496 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:51" (3/3) ... [2023-11-06 22:21:51,498 INFO L332 chiAutomizerObserver]: Analyzing ICFG java_Sequence-alloca.i [2023-11-06 22:21:51,551 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:21:51,551 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:21:51,551 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:21:51,552 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:21:51,552 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:21:51,552 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:21:51,552 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:21:51,553 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:21:51,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2023-11-06 22:21:51,577 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-06 22:21:51,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:51,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:51,583 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:21:51,584 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:21:51,584 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:21:51,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2023-11-06 22:21:51,586 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-06 22:21:51,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:51,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:51,587 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:21:51,587 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:21:51,595 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 4#L552-4true [2023-11-06 22:21:51,596 INFO L750 eck$LassoCheckResult]: Loop: 4#L552-4true call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 9#L552-1true assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 3#L552-3true call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 4#L552-4true [2023-11-06 22:21:51,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:51,602 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:21:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:51,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237531614] [2023-11-06 22:21:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:51,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:51,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:51,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:51,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:51,889 INFO L85 PathProgramCache]: Analyzing trace with hash 35911, now seen corresponding path program 1 times [2023-11-06 22:21:51,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:51,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651008293] [2023-11-06 22:21:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:51,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:51,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:51,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:51,961 INFO L85 PathProgramCache]: Analyzing trace with hash 28694853, now seen corresponding path program 1 times [2023-11-06 22:21:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:51,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235345820] [2023-11-06 22:21:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:51,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:52,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:52,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:52,829 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:21:52,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:21:52,830 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:21:52,830 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:21:52,830 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:21:52,830 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:52,830 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:21:52,830 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:21:52,831 INFO L133 ssoRankerPreferences]: Filename of dumped script: java_Sequence-alloca.i_Iteration1_Lasso [2023-11-06 22:21:52,831 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:21:52,831 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:21:52,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:52,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:53,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:53,372 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:53,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:53,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:53,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:53,820 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:21:53,825 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:21:53,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:53,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:53,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:53,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:21:53,842 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 [2023-11-06 22:21:53,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:53,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:53,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:53,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:53,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:53,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:53,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:53,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:53,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:53,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:53,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:53,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:53,905 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 [2023-11-06 22:21:53,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:21:53,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:53,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:53,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:53,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:53,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:53,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:53,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:53,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:53,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:53,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:53,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:53,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:53,959 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 [2023-11-06 22:21:53,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:21:53,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:53,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:53,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:53,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:53,978 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:53,978 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:53,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:53,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:53,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:53,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,001 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,013 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 [2023-11-06 22:21:54,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:21:54,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,064 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:21:54,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:21:54,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:54,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:54,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:54,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,113 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,122 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 [2023-11-06 22:21:54,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:54,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:21:54,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:54,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:54,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,154 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,165 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 [2023-11-06 22:21:54,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:21:54,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,185 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,185 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,210 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:21:54,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:21:54,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:54,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:54,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:54,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:21:54,273 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 [2023-11-06 22:21:54,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,290 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,323 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,328 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 [2023-11-06 22:21:54,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:21:54,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:54,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:54,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:54,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,363 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,373 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 [2023-11-06 22:21:54,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:21:54,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:54,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:54,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:54,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,410 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,417 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 [2023-11-06 22:21:54,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:21:54,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,458 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,463 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 [2023-11-06 22:21:54,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:21:54,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,511 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:21:54,518 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 [2023-11-06 22:21:54,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,566 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,576 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 [2023-11-06 22:21:54,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:21:54,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,615 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,620 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 [2023-11-06 22:21:54,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:21:54,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,670 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,681 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 [2023-11-06 22:21:54,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:21:54,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,730 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,741 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 [2023-11-06 22:21:54,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:21:54,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,786 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,792 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 [2023-11-06 22:21:54,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:21:54,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:54,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:54,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,837 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:21:54,849 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 [2023-11-06 22:21:54,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:54,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:54,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:54,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:54,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:54,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:54,878 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:21:54,911 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-06 22:21:54,911 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-06 22:21:54,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:54,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,956 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:21:54,963 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:21:54,985 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:21:54,985 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:21:54,986 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~i~0#1.base) ULTIMATE.start_main_~i~0#1.offset)_1 + 199 Supporting invariants [] [2023-11-06 22:21:54,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:55,072 INFO L156 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2023-11-06 22:21:55,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:55,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:21:55,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:55,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:21:55,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:55,286 INFO L322 Elim1Store]: treesize reduction 20, result has 58.3 percent of original size [2023-11-06 22:21:55,287 INFO L351 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 2 case distinctions, treesize of input 47 treesize of output 47 [2023-11-06 22:21:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:55,398 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 [2023-11-06 22:21:55,401 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:55,475 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 31 transitions. Complement of second has 10 states. [2023-11-06 22:21:55,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-06 22:21:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:55,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2023-11-06 22:21:55,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-06 22:21:55,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:21:55,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-06 22:21:55,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:21:55,486 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-06 22:21:55,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:21:55,487 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 31 transitions. [2023-11-06 22:21:55,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:55,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 11 states and 13 transitions. [2023-11-06 22:21:55,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-06 22:21:55,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:21:55,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2023-11-06 22:21:55,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:21:55,496 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-06 22:21:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2023-11-06 22:21:55,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-06 22:21:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2023-11-06 22:21:55,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-06 22:21:55,526 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-06 22:21:55,526 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:21:55,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2023-11-06 22:21:55,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:55,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:55,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:55,527 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-06 22:21:55,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:21:55,528 INFO L748 eck$LassoCheckResult]: Stem: 156#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 157#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 150#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 152#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 153#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 154#L553-4 [2023-11-06 22:21:55,528 INFO L750 eck$LassoCheckResult]: Loop: 154#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 158#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 155#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 154#L553-4 [2023-11-06 22:21:55,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash 28694795, now seen corresponding path program 1 times [2023-11-06 22:21:55,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:55,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682362179] [2023-11-06 22:21:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:55,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:55,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:55,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:55,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682362179] [2023-11-06 22:21:55,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682362179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:55,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:55,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:21:55,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168790129] [2023-11-06 22:21:55,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:55,807 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:21:55,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:55,809 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 1 times [2023-11-06 22:21:55,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:55,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247308822] [2023-11-06 22:21:55,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:55,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:55,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:55,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:55,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:55,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:55,954 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:56,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:56,002 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-11-06 22:21:56,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 14 transitions. [2023-11-06 22:21:56,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:56,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 13 transitions. [2023-11-06 22:21:56,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:21:56,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:21:56,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2023-11-06 22:21:56,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:21:56,006 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-06 22:21:56,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2023-11-06 22:21:56,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-06 22:21:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:56,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-06 22:21:56,009 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-06 22:21:56,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:21:56,011 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-06 22:21:56,011 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:21:56,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2023-11-06 22:21:56,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:56,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:56,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:56,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:56,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:21:56,014 INFO L748 eck$LassoCheckResult]: Stem: 189#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 190#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 183#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 184#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 181#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 182#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 185#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 186#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 187#L553-4 [2023-11-06 22:21:56,015 INFO L750 eck$LassoCheckResult]: Loop: 187#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 191#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 188#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 187#L553-4 [2023-11-06 22:21:56,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash 149879881, now seen corresponding path program 1 times [2023-11-06 22:21:56,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:56,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541435084] [2023-11-06 22:21:56,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:56,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:56,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541435084] [2023-11-06 22:21:56,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541435084] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:56,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316191858] [2023-11-06 22:21:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:56,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:56,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:56,545 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:56,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-06 22:21:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:56,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-06 22:21:56,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:56,684 INFO L322 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-11-06 22:21:56,685 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2023-11-06 22:21:56,699 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-11-06 22:21:56,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:21:56,741 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 22:21:56,762 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-11-06 22:21:56,957 INFO L322 Elim1Store]: treesize reduction 17, result has 51.4 percent of original size [2023-11-06 22:21:56,957 INFO L351 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 2 case distinctions, treesize of input 70 treesize of output 76 [2023-11-06 22:21:57,005 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 58 [2023-11-06 22:21:57,051 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 57 [2023-11-06 22:21:57,114 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 3 [2023-11-06 22:21:57,149 INFO L351 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 36 treesize of output 13 [2023-11-06 22:21:57,174 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:21:57,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:57,182 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:21:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:57,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316191858] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:21:57,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:21:57,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-11-06 22:21:57,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560703491] [2023-11-06 22:21:57,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:21:57,314 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:21:57,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:57,315 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 2 times [2023-11-06 22:21:57,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:57,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266705056] [2023-11-06 22:21:57,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:57,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:57,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:57,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:57,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:57,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:21:57,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:21:57,438 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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) [2023-11-06 22:21:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:57,590 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-11-06 22:21:57,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 21 transitions. [2023-11-06 22:21:57,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:57,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 19 transitions. [2023-11-06 22:21:57,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:21:57,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:21:57,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 19 transitions. [2023-11-06 22:21:57,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:21:57,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-11-06 22:21:57,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 19 transitions. [2023-11-06 22:21:57,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-06 22:21:57,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 16 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) [2023-11-06 22:21:57,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-11-06 22:21:57,595 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-11-06 22:21:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:21:57,597 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-11-06 22:21:57,597 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:21:57,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2023-11-06 22:21:57,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:57,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:57,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:57,599 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 1, 1, 1, 1] [2023-11-06 22:21:57,599 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:21:57,599 INFO L748 eck$LassoCheckResult]: Stem: 284#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 285#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 278#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 279#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 292#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 291#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 288#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 276#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 277#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 280#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 290#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 289#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 287#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 281#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 282#L553-4 [2023-11-06 22:21:57,599 INFO L750 eck$LassoCheckResult]: Loop: 282#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 286#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 283#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 282#L553-4 [2023-11-06 22:21:57,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -579836663, now seen corresponding path program 2 times [2023-11-06 22:21:57,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:57,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607361282] [2023-11-06 22:21:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:58,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:58,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607361282] [2023-11-06 22:21:58,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607361282] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:21:58,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527135158] [2023-11-06 22:21:58,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:21:58,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:58,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:58,429 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:58,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-06 22:21:58,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:21:58,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:21:58,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-06 22:21:58,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:58,550 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2023-11-06 22:21:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:21:58,558 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-11-06 22:21:58,561 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-11-06 22:21:58,583 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:21:58,598 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-06 22:21:58,625 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:21:58,640 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-06 22:21:58,667 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:21:58,688 INFO L351 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 36 treesize of output 13 [2023-11-06 22:21:58,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:21:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:58,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:21:58,781 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_164 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99)) is different from false [2023-11-06 22:21:58,800 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_162 Int) (v_ArrVal_164 (Array Int Int))) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_162) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_162)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99)))) is different from false [2023-11-06 22:21:58,817 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_161 (Array Int Int)) (v_ArrVal_162 Int) (v_ArrVal_164 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_161) |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_162) (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_162)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99)))) is different from false [2023-11-06 22:21:58,853 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_159 Int) (v_ArrVal_161 (Array Int Int)) (v_ArrVal_162 Int) (v_ArrVal_164 (Array Int Int))) (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_159)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_161) |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_162)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_162) (< (+ (select .cse1 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_159))))) is different from false [2023-11-06 22:21:58,880 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_159 Int) (v_ArrVal_161 (Array Int Int)) (v_ArrVal_162 Int) (v_ArrVal_164 (Array Int Int)) (v_ArrVal_158 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_158) |c_ULTIMATE.start_main_~i~0#1.base|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_159)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_161) |c_ULTIMATE.start_main_~i~0#1.base|))) (or (< (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~i~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~i~0#1.offset| v_ArrVal_162)) |c_ULTIMATE.start_main_~c~0#1.base| v_ArrVal_164) |c_ULTIMATE.start_main_~i~0#1.base|) |c_ULTIMATE.start_main_~i~0#1.offset|) 99) (< (+ (select .cse0 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_162) (< (+ (select .cse1 |c_ULTIMATE.start_main_~i~0#1.offset|) 1) v_ArrVal_159))))) is different from false [2023-11-06 22:21:58,928 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2023-11-06 22:21:58,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527135158] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:21:58,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:21:58,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 10] total 24 [2023-11-06 22:21:58,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91195258] [2023-11-06 22:21:58,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:21:58,930 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:21:58,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:58,930 INFO L85 PathProgramCache]: Analyzing trace with hash 50806, now seen corresponding path program 3 times [2023-11-06 22:21:58,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:58,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216546317] [2023-11-06 22:21:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:58,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:58,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:58,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-06 22:21:59,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=227, Unknown=5, NotChecked=190, Total=552 [2023-11-06 22:21:59,045 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. cyclomatic complexity: 3 Second operand has 24 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:21:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:59,309 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2023-11-06 22:21:59,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 31 transitions. [2023-11-06 22:21:59,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:59,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 28 transitions. [2023-11-06 22:21:59,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 22:21:59,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 22:21:59,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 28 transitions. [2023-11-06 22:21:59,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:21:59,312 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-11-06 22:21:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 28 transitions. [2023-11-06 22:21:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2023-11-06 22:21:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 25 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) [2023-11-06 22:21:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-11-06 22:21:59,315 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-11-06 22:21:59,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:21:59,320 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-11-06 22:21:59,321 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:21:59,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 27 transitions. [2023-11-06 22:21:59,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-06 22:21:59,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:59,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:59,326 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 1, 1, 1, 1] [2023-11-06 22:21:59,326 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:21:59,327 INFO L748 eck$LassoCheckResult]: Stem: 454#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 455#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~malloc4#1.base, main_#t~malloc4#1.offset, main_#t~mem8#1, main_#t~mem5#1, main_#t~post6#1, main_#t~mem7#1, main_#t~mem11#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem12#1, main_~i~0#1.base, main_~i~0#1.offset, main_~j~0#1.base, main_~j~0#1.offset, main_~c~0#1.base, main_~c~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~i~0#1.base, main_~i~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~j~0#1.base, main_~j~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call main_#t~malloc4#1.base, main_#t~malloc4#1.offset := #Ultimate.allocOnStack(4);main_~c~0#1.base, main_~c~0#1.offset := main_#t~malloc4#1.base, main_#t~malloc4#1.offset;call write~int(0, main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(0, main_~i~0#1.base, main_~i~0#1.offset, 4); 447#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 448#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 470#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 449#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 450#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 445#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 446#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 469#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 468#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 467#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 466#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 465#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 464#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 463#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 462#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 461#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 459#L552-1 assume !!(main_#t~mem7#1 < 100);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem8#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem8#1; 460#L552-3 call main_#t~mem5#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4);main_#t~post6#1 := main_#t~mem5#1;call write~int(1 + main_#t~post6#1, main_~i~0#1.base, main_~i~0#1.offset, 4);havoc main_#t~mem5#1;havoc main_#t~post6#1; 458#L552-4 call main_#t~mem7#1 := read~int(main_~i~0#1.base, main_~i~0#1.offset, 4); 457#L552-1 assume !(main_#t~mem7#1 < 100);havoc main_#t~mem7#1; 451#L552-5 call write~int(5, main_~j~0#1.base, main_~j~0#1.offset, 4); 452#L553-4 [2023-11-06 22:21:59,327 INFO L750 eck$LassoCheckResult]: Loop: 452#L553-4 call main_#t~mem10#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4); 456#L553-1 assume !!(main_#t~mem10#1 < 21);havoc main_#t~mem10#1;call main_#t~mem11#1 := read~int(main_~c~0#1.base, main_~c~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~c~0#1.base, main_~c~0#1.offset, 4);havoc main_#t~mem11#1; 453#L553-3 call main_#t~mem9#1 := read~int(main_~j~0#1.base, main_~j~0#1.offset, 4);call write~int(3 + main_#t~mem9#1, main_~j~0#1.base, main_~j~0#1.offset, 4);havoc main_#t~mem9#1; 452#L553-4 [2023-11-06 22:21:59,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash -733972789, now seen corresponding path program 3 times [2023-11-06 22:21:59,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:59,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155352539] [2023-11-06 22:21:59,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:59,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:01,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:01,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155352539] [2023-11-06 22:22:01,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155352539] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:22:01,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627810201] [2023-11-06 22:22:01,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:22:01,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:01,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:01,357 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:01,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60aedfab-a5bf-4169-a61b-b01de9dfc127/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-06 22:22:01,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-11-06 22:22:01,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:22:01,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-06 22:22:01,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:01,618 INFO L322 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2023-11-06 22:22:01,618 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 64 [2023-11-06 22:22:01,626 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-11-06 22:22:01,637 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-11-06 22:22:01,670 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 12 [2023-11-06 22:22:01,814 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:01,815 INFO L351 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 2 case distinctions, treesize of input 67 treesize of output 59 [2023-11-06 22:22:01,914 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:01,915 INFO L351 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 2 case distinctions, treesize of input 52 treesize of output 44 [2023-11-06 22:22:02,033 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,033 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:02,134 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,134 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:02,255 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,255 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:02,371 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,372 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:02,543 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,544 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:02,662 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,663 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:02,831 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,832 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:02,942 INFO L322 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2023-11-06 22:22:02,943 INFO L351 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 2 case distinctions, treesize of input 48 treesize of output 40 [2023-11-06 22:22:03,054 INFO L322 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2023-11-06 22:22:03,058 INFO L351 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 2 case distinctions, treesize of input 37 treesize of output 40 [2023-11-06 22:22:03,098 INFO L351 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 36 treesize of output 13 [2023-11-06 22:22:03,133 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:22:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:22:03,148 INFO L327 TraceCheckSpWp]: Computing backward predicates...