./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/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_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/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 32bit --witnessprinter.graph.data.programhash e27d2e3e94b55a3b3138a7f2b03714931363cb725f69630c5958681cf34de99e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:42:03,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:42:03,281 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:42:03,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:42:03,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:42:03,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:42:03,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:42:03,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:42:03,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:42:03,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:42:03,316 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:42:03,316 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:42:03,317 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:42:03,317 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:42:03,318 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:42:03,318 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:42:03,319 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:42:03,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:42:03,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:42:03,320 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:42:03,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:42:03,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:42:03,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:42:03,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:42:03,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:42:03,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:42:03,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:42:03,324 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:42:03,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:42:03,325 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:42:03,325 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:42:03,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:42:03,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:42:03,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:42:03,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:42:03,327 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:42:03,327 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_46611c57-4bc5-460e-8704-fdd7eb9e5977/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e27d2e3e94b55a3b3138a7f2b03714931363cb725f69630c5958681cf34de99e [2023-11-06 22:42:03,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:42:03,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:42:03,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:42:03,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:42:03,582 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:42:03,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2023-11-06 22:42:06,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:42:07,042 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:42:07,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/sv-benchmarks/c/array-memsafety/openbsd_cstrspn-alloca-2.i [2023-11-06 22:42:07,057 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/data/acabaa34d/89bfba36385544fda850d4665c1f59a5/FLAGd8ddc3681 [2023-11-06 22:42:07,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/data/acabaa34d/89bfba36385544fda850d4665c1f59a5 [2023-11-06 22:42:07,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:42:07,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:42:07,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:07,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:42:07,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:42:07,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20093b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07, skipping insertion in model container [2023-11-06 22:42:07,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,130 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:42:07,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:07,463 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:42:07,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:07,564 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:42:07,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07 WrapperNode [2023-11-06 22:42:07,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:07,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:07,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:42:07,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:42:07,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,610 INFO L138 Inliner]: procedures = 117, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2023-11-06 22:42:07,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:07,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:42:07,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:42:07,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:42:07,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,644 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:42:07,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:42:07,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:42:07,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:42:07,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:07,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:07,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:07,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:42:07,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:42:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:42:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:42:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:42:07,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:42:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:42:07,857 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:42:07,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:42:08,038 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:42:08,044 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:42:08,047 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:42:08,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:08 BoogieIcfgContainer [2023-11-06 22:42:08,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:42:08,050 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:42:08,050 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:42:08,055 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:42:08,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:42:08,056 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:42:07" (1/3) ... [2023-11-06 22:42:08,057 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a167b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:42:08, skipping insertion in model container [2023-11-06 22:42:08,057 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:42:08,057 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07" (2/3) ... [2023-11-06 22:42:08,057 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a167b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:42:08, skipping insertion in model container [2023-11-06 22:42:08,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:42:08,058 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:08" (3/3) ... [2023-11-06 22:42:08,059 INFO L332 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrspn-alloca-2.i [2023-11-06 22:42:08,129 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:42:08,130 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:42:08,130 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:42:08,131 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:42:08,131 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:42:08,131 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:42:08,131 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:42:08,132 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:42:08,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:08,163 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2023-11-06 22:42:08,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:08,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:08,169 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-06 22:42:08,169 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:42:08,169 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:42:08,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:08,172 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2023-11-06 22:42:08,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:08,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:08,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-06 22:42:08,172 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:42:08,180 INFO L748 eck$LassoCheckResult]: Stem: 16#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 13#L528true assume !(main_~length1~0#1 < 1); 6#L528-2true assume !(main_~length2~0#1 < 1); 14#L531-1true call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 5#L537-3true [2023-11-06 22:42:08,181 INFO L750 eck$LassoCheckResult]: Loop: 5#L537-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet11#1;call write~int(main_#t~nondet11#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet11#1; 17#L537-2true main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 5#L537-3true [2023-11-06 22:42:08,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:08,187 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2023-11-06 22:42:08,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:08,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143033763] [2023-11-06 22:42:08,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:08,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:08,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:08,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:08,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2023-11-06 22:42:08,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:08,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248257303] [2023-11-06 22:42:08,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:08,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:08,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:08,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:08,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2023-11-06 22:42:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:08,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292742254] [2023-11-06 22:42:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:08,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:08,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:08,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:09,090 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:42:09,091 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:42:09,091 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:42:09,091 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:42:09,092 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:42:09,092 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:09,092 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:42:09,092 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:42:09,092 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration1_Lasso [2023-11-06 22:42:09,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:42:09,093 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:42:09,113 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 22:42:09,123 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 22:42:09,126 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 22:42:09,129 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 22:42:09,133 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 22:42:09,437 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 22:42:09,441 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 22:42:09,444 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 22:42:09,447 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 22:42:09,451 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 22:42:09,455 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 22:42:09,458 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 22:42:09,463 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 22:42:09,466 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 22:42:09,470 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 22:42:09,481 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 22:42:09,873 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:42:09,877 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:42:09,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:09,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:09,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:09,894 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 22:42:09,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:42:09,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:09,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:09,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:09,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:09,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:09,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:09,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:09,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:09,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:09,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:09,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:09,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:09,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:42:09,937 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 22:42:09,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:09,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:09,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:09,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:09,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:09,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:09,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:09,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:09,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:09,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:09,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:09,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:42:09,974 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 22:42:09,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:09,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:09,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:09,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:09,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:09,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:09,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:09,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:10,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:10,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:10,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:10,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:10,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:42:10,017 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 22:42:10,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:10,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:10,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:10,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:10,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:10,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:10,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:10,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:10,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:10,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:10,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:10,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:42:10,061 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 22:42:10,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:10,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:10,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:10,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:10,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:10,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:10,104 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:42:10,142 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2023-11-06 22:42:10,142 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2023-11-06 22:42:10,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:10,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:10,179 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:10,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:42:10,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:42:10,213 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:42:10,213 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:42:10,214 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~nondetString1~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0#1.base)_1 - 1*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~nondetString1~0#1.offset Supporting invariants [] [2023-11-06 22:42:10,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:10,249 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2023-11-06 22:42:10,258 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~nondetString1~0!base] could not be translated [2023-11-06 22:42:10,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:10,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:42:10,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:10,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:42:10,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:10,349 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 22:42:10,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-06 22:42:10,417 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:42:10,420 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:10,480 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 52 transitions. Complement of second has 8 states. [2023-11-06 22:42:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:42:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2023-11-06 22:42:10,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-06 22:42:10,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:10,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:42:10,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:10,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-06 22:42:10,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:10,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 52 transitions. [2023-11-06 22:42:10,499 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-06 22:42:10,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 16 states and 23 transitions. [2023-11-06 22:42:10,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 22:42:10,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-06 22:42:10,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 23 transitions. [2023-11-06 22:42:10,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:10,504 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2023-11-06 22:42:10,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 23 transitions. [2023-11-06 22:42:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-06 22:42:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2023-11-06 22:42:10,526 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2023-11-06 22:42:10,526 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2023-11-06 22:42:10,527 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:42:10,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2023-11-06 22:42:10,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-06 22:42:10,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:10,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:10,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:10,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-06 22:42:10,529 INFO L748 eck$LassoCheckResult]: Stem: 142#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 138#L528 assume !(main_~length1~0#1 < 1); 135#L528-2 assume !(main_~length2~0#1 < 1); 136#L531-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 132#L537-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 130#L537-4 havoc main_~i~0#1;main_~i~1#1 := 0; 131#L541-3 [2023-11-06 22:42:10,529 INFO L750 eck$LassoCheckResult]: Loop: 131#L541-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet13#1;call write~int(main_#t~nondet13#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 143#L541-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 131#L541-3 [2023-11-06 22:42:10,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:10,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2023-11-06 22:42:10,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:10,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706323317] [2023-11-06 22:42:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:10,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:10,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:10,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:10,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2023-11-06 22:42:10,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:10,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972038946] [2023-11-06 22:42:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:10,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:10,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:10,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:10,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:10,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2023-11-06 22:42:10,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:10,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898994254] [2023-11-06 22:42:10,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:10,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:10,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:10,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:10,952 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:42:10,952 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:42:10,952 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:42:10,952 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:42:10,952 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:42:10,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:10,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:42:10,953 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:42:10,953 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration2_Lasso [2023-11-06 22:42:10,953 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:42:10,953 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:42:10,959 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 22:42:10,963 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 22:42:10,967 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 22:42:10,970 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 22:42:10,973 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 22:42:10,977 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 22:42:10,980 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 22:42:10,983 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 22:42:10,987 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 22:42:10,991 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 22:42:10,994 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 22:42:10,997 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 22:42:11,000 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:11,003 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 22:42:11,010 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 22:42:11,013 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 22:42:11,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:11,543 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:42:11,543 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:42:11,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,548 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,556 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 22:42:11,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:11,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:11,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:11,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:42:11,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,594 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,602 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 22:42:11,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:11,618 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:11,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:42:11,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,651 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,659 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 22:42:11,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:42:11,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:11,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:11,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:11,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,697 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,711 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 22:42:11,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:11,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:11,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:11,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:42:11,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:42:11,769 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 22:42:11,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:11,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:11,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,818 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:11,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:11,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:11,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:11,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:42:11,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,863 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,872 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 22:42:11,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:11,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:11,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:42:11,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,924 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:11,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:42:11,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:11,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:11,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:11,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:11,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:11,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:11,969 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:11,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:11,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:11,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:11,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:11,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:11,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:11,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:11,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:42:12,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,041 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:12,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:42:12,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:12,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:12,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,073 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,079 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 22:42:12,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:12,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:12,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:12,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:42:12,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,113 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,121 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 22:42:12,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:42:12,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:12,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:12,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:12,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,155 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:12,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:12,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:12,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:12,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:42:12,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,205 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,222 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 22:42:12,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:12,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:12,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:12,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-06 22:42:12,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,260 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:42:12,263 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 22:42:12,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:12,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:12,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:12,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,297 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,304 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 22:42:12,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:42:12,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,319 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:12,319 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:12,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,336 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,340 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 22:42:12,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:42:12,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:12,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:12,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,389 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,392 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 22:42:12,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:12,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:12,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:42:12,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:12,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,433 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:12,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:12,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:12,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:12,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:12,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:12,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:12,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:42:12,491 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:42:12,564 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2023-11-06 22:42:12,564 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. [2023-11-06 22:42:12,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:12,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:12,566 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:12,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:42:12,570 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:42:12,604 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-06 22:42:12,604 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:42:12,605 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1) = -2*ULTIMATE.start_main_~i~1#1 + 8589934589 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0#1.offset - 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_1 + 4294967295 >= 0] [2023-11-06 22:42:12,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:12,634 INFO L156 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2023-11-06 22:42:12,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:12,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:42:12,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:12,744 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 13 treesize of output 1 [2023-11-06 22:42:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:12,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:42:12,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:12,821 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 22:42:12,822 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-06 22:42:12,823 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:12,891 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 23 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 36 transitions. Complement of second has 9 states. [2023-11-06 22:42:12,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-06 22:42:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:12,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2023-11-06 22:42:12,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-06 22:42:12,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:12,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-06 22:42:12,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:12,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-06 22:42:12,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:12,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2023-11-06 22:42:12,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:42:12,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 17 states and 24 transitions. [2023-11-06 22:42:12,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-06 22:42:12,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 22:42:12,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2023-11-06 22:42:12,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:12,902 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 24 transitions. [2023-11-06 22:42:12,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2023-11-06 22:42:12,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-06 22:42:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 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 22:42:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2023-11-06 22:42:12,906 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 24 transitions. [2023-11-06 22:42:12,906 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2023-11-06 22:42:12,906 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:42:12,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2023-11-06 22:42:12,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:42:12,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:12,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:12,909 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:12,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:42:12,910 INFO L748 eck$LassoCheckResult]: Stem: 269#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 264#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 265#L528 assume !(main_~length1~0#1 < 1); 262#L528-2 assume !(main_~length2~0#1 < 1); 263#L531-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 259#L537-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 257#L537-4 havoc main_~i~0#1;main_~i~1#1 := 0; 258#L541-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 266#L541-4 havoc main_~i~1#1;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, cstrspn_#t~mem5#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset, cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset, cstrspn_~c~0#1, cstrspn_~sc~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset;havoc cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;havoc cstrspn_~c~0#1;havoc cstrspn_~sc~0#1; 267#L518 [2023-11-06 22:42:12,910 INFO L750 eck$LassoCheckResult]: Loop: 267#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 255#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 256#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 268#L521 assume cstrspn_~sc~0#1 == cstrspn_~c~0#1; 267#L518 [2023-11-06 22:42:12,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2023-11-06 22:42:12,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:12,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603311321] [2023-11-06 22:42:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:12,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:12,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:13,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:13,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:13,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 1 times [2023-11-06 22:42:13,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:13,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004660824] [2023-11-06 22:42:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:13,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:13,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:13,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:13,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:13,038 INFO L85 PathProgramCache]: Analyzing trace with hash -587636803, now seen corresponding path program 1 times [2023-11-06 22:42:13,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:13,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713751691] [2023-11-06 22:42:13,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:13,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:13,518 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 22:42:13,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:13,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713751691] [2023-11-06 22:42:13,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713751691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:13,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:13,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:42:13,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678562178] [2023-11-06 22:42:13,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:13,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:13,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:13,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:42:13,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:42:13,699 INFO L87 Difference]: Start difference. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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 22:42:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:13,806 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2023-11-06 22:42:13,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2023-11-06 22:42:13,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:42:13,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 24 transitions. [2023-11-06 22:42:13,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 22:42:13,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-06 22:42:13,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2023-11-06 22:42:13,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:13,812 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2023-11-06 22:42:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2023-11-06 22:42:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-06 22:42:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2023-11-06 22:42:13,816 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 23 transitions. [2023-11-06 22:42:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:42:13,818 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2023-11-06 22:42:13,818 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:42:13,818 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2023-11-06 22:42:13,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:42:13,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:13,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:13,821 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:13,821 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:42:13,821 INFO L748 eck$LassoCheckResult]: Stem: 328#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 323#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 324#L528 assume !(main_~length1~0#1 < 1); 321#L528-2 assume !(main_~length2~0#1 < 1); 322#L531-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 318#L537-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 316#L537-4 havoc main_~i~0#1;main_~i~1#1 := 0; 317#L541-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet13#1;call write~int(main_#t~nondet13#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 329#L541-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 330#L541-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 325#L541-4 havoc main_~i~1#1;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, cstrspn_#t~mem5#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset, cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset, cstrspn_~c~0#1, cstrspn_~sc~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset;havoc cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;havoc cstrspn_~c~0#1;havoc cstrspn_~sc~0#1; 326#L518 [2023-11-06 22:42:13,821 INFO L750 eck$LassoCheckResult]: Loop: 326#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 314#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 315#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 327#L521 assume cstrspn_~sc~0#1 == cstrspn_~c~0#1; 326#L518 [2023-11-06 22:42:13,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:13,822 INFO L85 PathProgramCache]: Analyzing trace with hash -2087704584, now seen corresponding path program 1 times [2023-11-06 22:42:13,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:13,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884937538] [2023-11-06 22:42:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:13,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:13,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:13,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:13,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 2 times [2023-11-06 22:42:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:13,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367144590] [2023-11-06 22:42:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:13,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:13,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:13,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:13,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1860214623, now seen corresponding path program 1 times [2023-11-06 22:42:13,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:13,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668979147] [2023-11-06 22:42:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:13,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:42:14,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:14,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668979147] [2023-11-06 22:42:14,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668979147] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:14,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:14,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:42:14,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829753245] [2023-11-06 22:42:14,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:14,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:14,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:42:14,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:42:14,412 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 9 Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:14,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:14,524 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2023-11-06 22:42:14,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2023-11-06 22:42:14,526 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-06 22:42:14,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2023-11-06 22:42:14,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-06 22:42:14,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-06 22:42:14,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2023-11-06 22:42:14,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:14,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 36 transitions. [2023-11-06 22:42:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2023-11-06 22:42:14,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2023-11-06 22:42:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:14,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2023-11-06 22:42:14,536 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 33 transitions. [2023-11-06 22:42:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:42:14,538 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2023-11-06 22:42:14,538 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:42:14,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2023-11-06 22:42:14,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-06 22:42:14,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:14,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:14,541 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:14,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:42:14,541 INFO L748 eck$LassoCheckResult]: Stem: 397#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 391#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 392#L528 assume !(main_~length1~0#1 < 1); 389#L528-2 assume !(main_~length2~0#1 < 1); 390#L531-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 385#L537-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 383#L537-4 havoc main_~i~0#1;main_~i~1#1 := 0; 384#L541-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet13#1;call write~int(main_#t~nondet13#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 400#L541-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 403#L541-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 405#L541-4 havoc main_~i~1#1;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, cstrspn_#t~mem5#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset, cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset, cstrspn_~c~0#1, cstrspn_~sc~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset;havoc cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;havoc cstrspn_~c~0#1;havoc cstrspn_~sc~0#1; 395#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 381#L520-3 [2023-11-06 22:42:14,541 INFO L750 eck$LassoCheckResult]: Loop: 381#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 382#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 396#L521 assume !(cstrspn_~sc~0#1 == cstrspn_~c~0#1); 381#L520-3 [2023-11-06 22:42:14,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:14,542 INFO L85 PathProgramCache]: Analyzing trace with hash -294332619, now seen corresponding path program 1 times [2023-11-06 22:42:14,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:14,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678696424] [2023-11-06 22:42:14,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:14,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:14,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:14,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:14,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:14,607 INFO L85 PathProgramCache]: Analyzing trace with hash 78613, now seen corresponding path program 1 times [2023-11-06 22:42:14,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:14,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036727587] [2023-11-06 22:42:14,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:14,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:14,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:14,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:14,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:14,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1860214625, now seen corresponding path program 1 times [2023-11-06 22:42:14,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:14,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945922354] [2023-11-06 22:42:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:14,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:14,631 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:14,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:16,063 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:42:16,064 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:42:16,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:42:16,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:42:16,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:42:16,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:16,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:42:16,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:42:16,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration5_Lasso [2023-11-06 22:42:16,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:42:16,064 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:42:16,069 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 22:42:16,075 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 22:42:16,077 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 22:42:16,080 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 22:42:16,082 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 22:42:16,085 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 22:42:16,089 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 22:42:16,092 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 22:42:16,703 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 22:42:16,706 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 22:42:16,708 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 22:42:16,711 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 22:42:16,714 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 22:42:16,716 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 22:42:16,719 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 22:42:16,721 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 22:42:16,724 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 22:42:16,728 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 22:42:16,730 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 22:42:16,735 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 22:42:16,737 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 22:42:16,740 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 22:42:16,742 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 22:42:16,745 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 22:42:16,747 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 22:42:16,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:16,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:17,300 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:42:17,300 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:42:17,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,302 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,312 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 22:42:17,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:17,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:17,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:17,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 22:42:17,340 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,350 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:17,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:17,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:17,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:17,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 22:42:17,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,389 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,399 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 22:42:17,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:17,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:17,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:17,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 22:42:17,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,433 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,437 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 22:42:17,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:17,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:17,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:17,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 22:42:17,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,473 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,477 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 22:42:17,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:17,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:17,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 22:42:17,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,529 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,532 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 22:42:17,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,547 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:17,547 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:17,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 22:42:17,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,585 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:17,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:17,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:17,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-06 22:42:17,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,620 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,625 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 22:42:17,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:17,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:17,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-06 22:42:17,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:17,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,660 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,664 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 22:42:17,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:17,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:17,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:17,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:17,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-06 22:42:17,683 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:17,683 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:17,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:42:17,719 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-11-06 22:42:17,720 INFO L444 ModelExtractionUtils]: 1 out of 13 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-06 22:42:17,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:17,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:17,721 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:17,729 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:42:17,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-06 22:42:17,757 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:42:17,757 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:42:17,757 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9#1.base)_3, ULTIMATE.start_cstrspn_~spanp~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9#1.base)_3 - 1*ULTIMATE.start_cstrspn_~spanp~0#1.offset Supporting invariants [] [2023-11-06 22:42:17,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:17,845 INFO L156 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2023-11-06 22:42:17,847 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc9!base] could not be translated [2023-11-06 22:42:17,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:17,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:42:17,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:17,970 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:42:17,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:18,005 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 22:42:18,006 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2023-11-06 22:42:18,006 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:18,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 33 transitions. cyclomatic complexity: 12. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 46 transitions. Complement of second has 7 states. [2023-11-06 22:42:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:42:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-06 22:42:18,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 3 letters. [2023-11-06 22:42:18,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:18,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 15 letters. Loop has 3 letters. [2023-11-06 22:42:18,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:18,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 12 letters. Loop has 6 letters. [2023-11-06 22:42:18,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:18,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 46 transitions. [2023-11-06 22:42:18,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:42:18,072 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 24 states and 30 transitions. [2023-11-06 22:42:18,072 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-06 22:42:18,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-11-06 22:42:18,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2023-11-06 22:42:18,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:42:18,072 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-11-06 22:42:18,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2023-11-06 22:42:18,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-06 22:42:18,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:18,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2023-11-06 22:42:18,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-06 22:42:18,075 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-06 22:42:18,075 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:42:18,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2023-11-06 22:42:18,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 22:42:18,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:18,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:18,077 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:18,077 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:42:18,077 INFO L748 eck$LassoCheckResult]: Stem: 617#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 609#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 610#L528 assume !(main_~length1~0#1 < 1); 607#L528-2 assume !(main_~length2~0#1 < 1); 608#L531-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 604#L537-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet11#1;call write~int(main_#t~nondet11#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet11#1; 605#L537-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 606#L537-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 602#L537-4 havoc main_~i~0#1;main_~i~1#1 := 0; 603#L541-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet13#1;call write~int(main_#t~nondet13#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 619#L541-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 620#L541-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 613#L541-4 havoc main_~i~1#1;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, cstrspn_#t~mem5#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset, cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset, cstrspn_~c~0#1, cstrspn_~sc~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset;havoc cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;havoc cstrspn_~c~0#1;havoc cstrspn_~sc~0#1; 611#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 612#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 601#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 614#L521 assume cstrspn_~sc~0#1 == cstrspn_~c~0#1; 615#L518 [2023-11-06 22:42:18,077 INFO L750 eck$LassoCheckResult]: Loop: 615#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 598#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 599#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 618#L521 assume cstrspn_~sc~0#1 == cstrspn_~c~0#1; 615#L518 [2023-11-06 22:42:18,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:18,078 INFO L85 PathProgramCache]: Analyzing trace with hash -796682687, now seen corresponding path program 1 times [2023-11-06 22:42:18,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:18,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094206546] [2023-11-06 22:42:18,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:18,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:18,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:18,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:18,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:18,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 3 times [2023-11-06 22:42:18,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:18,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216130536] [2023-11-06 22:42:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:18,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:18,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:18,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:18,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash 477217064, now seen corresponding path program 2 times [2023-11-06 22:42:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:18,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52565580] [2023-11-06 22:42:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:18,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:42:18,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:18,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52565580] [2023-11-06 22:42:18,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52565580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:42:18,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224540102] [2023-11-06 22:42:18,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:42:18,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:18,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:18,690 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:18,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-06 22:42:18,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:42:18,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:42:18,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-06 22:42:18,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:18,816 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 10 treesize of output 8 [2023-11-06 22:42:18,929 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2023-11-06 22:42:18,935 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 18 treesize of output 13 [2023-11-06 22:42:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:42:19,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:42:19,039 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:42:19,039 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2023-11-06 22:42:19,048 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:42:19,048 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 32 [2023-11-06 22:42:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:42:19,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224540102] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:42:19,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:42:19,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-06 22:42:19,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125796670] [2023-11-06 22:42:19,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:42:19,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:19,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-06 22:42:19,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:42:19,298 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand has 19 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 19 states have internal predecessors, (40), 0 states have call successors, (0), 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 22:42:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:19,589 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2023-11-06 22:42:19,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2023-11-06 22:42:19,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-06 22:42:19,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 52 transitions. [2023-11-06 22:42:19,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2023-11-06 22:42:19,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-06 22:42:19,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 52 transitions. [2023-11-06 22:42:19,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:42:19,592 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 52 transitions. [2023-11-06 22:42:19,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 52 transitions. [2023-11-06 22:42:19,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2023-11-06 22:42:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.225) internal successors, (49), 39 states have internal predecessors, (49), 0 states have call successors, (0), 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 22:42:19,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2023-11-06 22:42:19,596 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 49 transitions. [2023-11-06 22:42:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:42:19,597 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2023-11-06 22:42:19,597 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:42:19,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 49 transitions. [2023-11-06 22:42:19,598 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-06 22:42:19,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:19,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:19,599 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:19,599 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:42:19,600 INFO L748 eck$LassoCheckResult]: Stem: 848#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 838#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 839#L528 assume !(main_~length1~0#1 < 1); 836#L528-2 assume !(main_~length2~0#1 < 1); 837#L531-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 832#L537-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet11#1;call write~int(main_#t~nondet11#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet11#1; 833#L537-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 834#L537-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 830#L537-4 havoc main_~i~0#1;main_~i~1#1 := 0; 831#L541-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet13#1;call write~int(main_#t~nondet13#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 853#L541-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 851#L541-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 852#L541-4 havoc main_~i~1#1;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, cstrspn_#t~mem5#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset, cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset, cstrspn_~c~0#1, cstrspn_~sc~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset;havoc cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;havoc cstrspn_~c~0#1;havoc cstrspn_~sc~0#1; 856#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 857#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 861#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 858#L521 assume cstrspn_~sc~0#1 == cstrspn_~c~0#1; 842#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 826#L520-3 [2023-11-06 22:42:19,600 INFO L750 eck$LassoCheckResult]: Loop: 826#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 827#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 843#L521 assume !(cstrspn_~sc~0#1 == cstrspn_~c~0#1); 826#L520-3 [2023-11-06 22:42:19,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:19,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1072640524, now seen corresponding path program 3 times [2023-11-06 22:42:19,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:19,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445793729] [2023-11-06 22:42:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:19,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:19,634 INFO L85 PathProgramCache]: Analyzing trace with hash 78613, now seen corresponding path program 2 times [2023-11-06 22:42:19,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:19,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787461310] [2023-11-06 22:42:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:19,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:19,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:19,641 INFO L85 PathProgramCache]: Analyzing trace with hash 477217066, now seen corresponding path program 1 times [2023-11-06 22:42:19,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:19,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522564112] [2023-11-06 22:42:19,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:19,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:22,955 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:42:22,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:42:22,956 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:42:22,956 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:42:22,956 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:42:22,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:22,956 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:42:22,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:42:22,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration7_Lasso [2023-11-06 22:42:22,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:42:22,956 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:42:22,961 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 22:42:22,963 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 22:42:22,966 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 22:42:22,968 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 22:42:24,153 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 22:42:24,156 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 22:42:24,159 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 22:42:24,161 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 22:42:24,163 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 22:42:24,165 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 22:42:24,167 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 22:42:24,170 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 22:42:24,172 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 22:42:24,174 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 22:42:24,176 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 22:42:24,178 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 22:42:24,180 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 22:42:24,191 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 22:42:24,193 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 22:42:24,195 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 22:42:24,198 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 22:42:24,200 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 22:42:24,202 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 22:42:24,204 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 22:42:24,206 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 22:42:24,208 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 22:42:24,995 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:42:24,995 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:42:24,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:24,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:24,999 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:25,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-06 22:42:25,002 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 22:42:25,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:25,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:25,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:25,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:25,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:25,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:25,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:25,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:25,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:25,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:25,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:25,029 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:25,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-06 22:42:25,032 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 22:42:25,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:25,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:25,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:25,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:25,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:25,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:25,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:25,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:25,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-11-06 22:42:25,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:25,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:25,056 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:25,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-06 22:42:25,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:25,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:25,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:25,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:25,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:25,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:25,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:25,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:25,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-06 22:42:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:25,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:25,077 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:25,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-06 22:42:25,080 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 22:42:25,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:25,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:25,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:25,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:25,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:25,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:25,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:25,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:25,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:25,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:25,137 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:25,148 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 22:42:25,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:25,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:25,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:25,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:25,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-06 22:42:25,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:25,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:25,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:25,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:25,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:25,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:25,189 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:25,196 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 22:42:25,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:25,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:25,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:25,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:25,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-06 22:42:25,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:25,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:25,251 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:42:25,288 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2023-11-06 22:42:25,288 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2023-11-06 22:42:25,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:25,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:25,292 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:25,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-06 22:42:25,295 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:42:25,306 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:42:25,306 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:42:25,306 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~spanp~0#1.offset, v_rep(select #length ULTIMATE.start_cstrspn_~s2#1.base)_1) = -1*ULTIMATE.start_cstrspn_~spanp~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrspn_~s2#1.base)_1 Supporting invariants [] [2023-11-06 22:42:25,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:25,492 INFO L156 tatePredicateManager]: 31 out of 32 supporting invariants were superfluous and have been removed [2023-11-06 22:42:25,494 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~s2!base] could not be translated [2023-11-06 22:42:25,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:25,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:42:25,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:25,607 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:42:25,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:25,647 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:42:25,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:25,679 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 58 transitions. Complement of second has 5 states. [2023-11-06 22:42:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:42:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2023-11-06 22:42:25,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 18 letters. Loop has 3 letters. [2023-11-06 22:42:25,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:25,683 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:42:25,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:25,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:42:25,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:25,776 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:42:25,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:25,815 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 22:42:25,816 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:42:25,816 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:25,858 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 60 transitions. Complement of second has 5 states. [2023-11-06 22:42:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:42:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2023-11-06 22:42:25,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 18 letters. Loop has 3 letters. [2023-11-06 22:42:25,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:25,865 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:42:25,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:25,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:42:25,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:25,959 WARN L260 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:42:25,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:25,996 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 22:42:25,996 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-06 22:42:25,997 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:26,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:26,057 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 49 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 64 transitions. Complement of second has 4 states. [2023-11-06 22:42:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:42:26,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2023-11-06 22:42:26,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 18 letters. Loop has 3 letters. [2023-11-06 22:42:26,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:26,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 21 letters. Loop has 3 letters. [2023-11-06 22:42:26,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:26,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 18 letters. Loop has 6 letters. [2023-11-06 22:42:26,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:26,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 64 transitions. [2023-11-06 22:42:26,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 22:42:26,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 27 states and 33 transitions. [2023-11-06 22:42:26,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 22:42:26,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2023-11-06 22:42:26,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 33 transitions. [2023-11-06 22:42:26,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:42:26,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 33 transitions. [2023-11-06 22:42:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 33 transitions. [2023-11-06 22:42:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2023-11-06 22:42:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2023-11-06 22:42:26,070 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2023-11-06 22:42:26,071 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2023-11-06 22:42:26,071 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 22:42:26,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2023-11-06 22:42:26,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-06 22:42:26,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:42:26,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:42:26,072 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:26,073 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 22:42:26,073 INFO L748 eck$LassoCheckResult]: Stem: 1390#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1384#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet11#1, main_#t~post10#1, main_~i~0#1, main_#t~nondet13#1, main_#t~post12#1, main_~i~1#1, main_#t~ret14#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc main_#t~nondet6#1;main_~length1~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~length2~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1385#L528 assume !(main_~length1~0#1 < 1); 1382#L528-2 assume !(main_~length2~0#1 < 1); 1383#L531-1 call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;main_~i~0#1 := 0; 1378#L537-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet11#1;call write~int(main_#t~nondet11#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet11#1; 1379#L537-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1380#L537-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);havoc main_#t~nondet11#1;call write~int(main_#t~nondet11#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet11#1; 1381#L537-2 main_#t~post10#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post10#1;havoc main_#t~post10#1; 1393#L537-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 1376#L537-4 havoc main_~i~0#1;main_~i~1#1 := 0; 1377#L541-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);havoc main_#t~nondet13#1;call write~int(main_#t~nondet13#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet13#1; 1391#L541-2 main_#t~post12#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post12#1;havoc main_#t~post12#1; 1392#L541-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 1387#L541-4 havoc main_~i~1#1;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrspn } true;cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset, cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrspn_#res#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, cstrspn_#t~mem3#1, cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, cstrspn_#t~mem5#1, cstrspn_~s1#1.base, cstrspn_~s1#1.offset, cstrspn_~s2#1.base, cstrspn_~s2#1.offset, cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset, cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset, cstrspn_~c~0#1, cstrspn_~sc~0#1;cstrspn_~s1#1.base, cstrspn_~s1#1.offset := cstrspn_#in~s1#1.base, cstrspn_#in~s1#1.offset;cstrspn_~s2#1.base, cstrspn_~s2#1.offset := cstrspn_#in~s2#1.base, cstrspn_#in~s2#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_~s1#1.base, cstrspn_~s1#1.offset;havoc cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;havoc cstrspn_~c~0#1;havoc cstrspn_~sc~0#1; 1386#L518 [2023-11-06 22:42:26,073 INFO L750 eck$LassoCheckResult]: Loop: 1386#L518 cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset := cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset;cstrspn_~p~0#1.base, cstrspn_~p~0#1.offset := cstrspn_#t~post2#1.base, 1 + cstrspn_#t~post2#1.offset;call cstrspn_#t~mem3#1 := read~int(cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset, 1);cstrspn_~c~0#1 := cstrspn_#t~mem3#1;havoc cstrspn_#t~post2#1.base, cstrspn_#t~post2#1.offset;havoc cstrspn_#t~mem3#1;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_~s2#1.base, cstrspn_~s2#1.offset; 1373#L520-3 cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset := cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset;cstrspn_~spanp~0#1.base, cstrspn_~spanp~0#1.offset := cstrspn_#t~post4#1.base, 1 + cstrspn_#t~post4#1.offset;call cstrspn_#t~mem5#1 := read~int(cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset, 1);cstrspn_~sc~0#1 := cstrspn_#t~mem5#1; 1374#L520-1 assume !!(0 != cstrspn_~sc~0#1);havoc cstrspn_#t~post4#1.base, cstrspn_#t~post4#1.offset;havoc cstrspn_#t~mem5#1; 1388#L521 assume cstrspn_~sc~0#1 == cstrspn_~c~0#1; 1386#L518 [2023-11-06 22:42:26,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1523394364, now seen corresponding path program 1 times [2023-11-06 22:42:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846129946] [2023-11-06 22:42:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:26,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash 2312936, now seen corresponding path program 4 times [2023-11-06 22:42:26,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:26,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006454016] [2023-11-06 22:42:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:26,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:26,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1430543523, now seen corresponding path program 4 times [2023-11-06 22:42:26,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:26,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956301478] [2023-11-06 22:42:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:28,359 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:42:28,360 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:42:28,360 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:42:28,360 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:42:28,360 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:42:28,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:28,360 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:42:28,360 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:42:28,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrspn-alloca-2.i_Iteration8_Lasso [2023-11-06 22:42:28,360 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:42:28,361 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:42:28,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:28,377 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 22:42:28,379 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 22:42:28,381 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 22:42:29,127 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 22:42:29,129 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 22:42:29,131 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:29,135 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 22:42:29,137 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 22:42:29,138 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 22:42:29,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:29,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:29,145 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 22:42:29,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:29,148 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 22:42:29,150 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 22:42:29,152 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:29,154 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 22:42:29,156 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 22:42:29,159 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 22:42:29,161 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 22:42:29,162 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:42:29,165 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 22:42:29,167 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 22:42:29,616 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:42:29,616 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:42:29,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,620 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,628 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 22:42:29,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-06 22:42:29,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:29,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:29,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:29,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:29,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,647 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:29,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-06 22:42:29,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:29,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:29,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:29,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:29,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,670 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:29,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-06 22:42:29,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:29,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:29,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:29,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-06 22:42:29,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,688 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-06 22:42:29,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:29,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:29,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:29,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-06 22:42:29,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,710 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-06 22:42:29,717 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 22:42:29,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:29,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:29,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:29,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-06 22:42:29,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,739 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-06 22:42:29,747 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 22:42:29,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:29,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:29,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:29,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,787 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-06 22:42:29,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:29,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:29,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:29,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2023-11-06 22:42:29,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,845 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-06 22:42:29,851 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 22:42:29,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:29,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:29,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:29,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,872 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-06 22:42:29,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:42:29,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:29,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:29,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:29,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-11-06 22:42:29,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,890 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-06 22:42:29,892 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 22:42:29,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,903 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:29,904 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:29,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:29,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,919 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,928 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 22:42:29,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,942 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:29,942 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:29,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-06 22:42:29,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:29,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,968 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,972 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 22:42:29,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-06 22:42:29,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:29,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:29,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:29,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:29,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:29,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:29,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:29,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-11-06 22:42:29,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:29,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:29,993 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:29,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-06 22:42:29,996 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 22:42:30,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:30,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:30,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:30,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:30,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:30,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:42:30,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:30,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:30,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:30,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:30,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:30,036 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:30,044 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 22:42:30,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:30,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:30,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:30,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:30,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:30,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:30,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-06 22:42:30,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:30,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:30,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:30,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:30,080 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:30,084 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 22:42:30,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-06 22:42:30,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:30,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:42:30,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:30,096 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:42:30,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:30,099 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:42:30,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:42:30,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:42:30,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2023-11-06 22:42:30,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:30,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:30,107 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:30,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-06 22:42:30,110 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 22:42:30,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:42:30,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:42:30,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:42:30,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:42:30,126 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:42:30,126 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:42:30,137 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:42:30,151 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-06 22:42:30,152 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-11-06 22:42:30,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:42:30,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:30,155 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:30,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-06 22:42:30,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:42:30,168 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-06 22:42:30,168 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:42:30,169 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~p~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_5) = -1*ULTIMATE.start_cstrspn_~p~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_5 Supporting invariants [] [2023-11-06 22:42:30,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-06 22:42:30,231 INFO L156 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2023-11-06 22:42:30,233 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc8!base] could not be translated [2023-11-06 22:42:30,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:30,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:42:30,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:30,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:42:30,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:30,393 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 22:42:30,394 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-11-06 22:42:30,394 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:30,441 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 35 transitions. Complement of second has 5 states. [2023-11-06 22:42:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:42:30,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:42:30,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-06 22:42:30,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 15 letters. Loop has 4 letters. [2023-11-06 22:42:30,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:30,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 19 letters. Loop has 4 letters. [2023-11-06 22:42:30,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:30,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 15 letters. Loop has 8 letters. [2023-11-06 22:42:30,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:42:30,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2023-11-06 22:42:30,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:42:30,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2023-11-06 22:42:30,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:42:30,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:42:30,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:42:30,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:30,445 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:42:30,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:42:30,445 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:42:30,445 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-06 22:42:30,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:42:30,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:42:30,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:42:30,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:42:30 BoogieIcfgContainer [2023-11-06 22:42:30,452 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:42:30,453 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:42:30,457 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:42:30,458 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:42:30,458 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:08" (3/4) ... [2023-11-06 22:42:30,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:42:30,461 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:42:30,462 INFO L158 Benchmark]: Toolchain (without parser) took 23386.46ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 137.2MB in the beginning and 96.1MB in the end (delta: 41.0MB). Peak memory consumption was 168.1MB. Max. memory is 16.1GB. [2023-11-06 22:42:30,464 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:30,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.71ms. Allocated memory is still 167.8MB. Free memory was 137.2MB in the beginning and 120.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:42:30,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.73ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:42:30,466 INFO L158 Benchmark]: Boogie Preprocessor took 41.27ms. Allocated memory is still 167.8MB. Free memory was 118.3MB in the beginning and 116.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:42:30,466 INFO L158 Benchmark]: RCFGBuilder took 395.59ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 104.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:42:30,466 INFO L158 Benchmark]: BuchiAutomizer took 22401.97ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 104.3MB in the beginning and 96.1MB in the end (delta: 8.2MB). Peak memory consumption was 134.6MB. Max. memory is 16.1GB. [2023-11-06 22:42:30,467 INFO L158 Benchmark]: Witness Printer took 8.51ms. Allocated memory is still 293.6MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:30,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.71ms. Allocated memory is still 167.8MB. Free memory was 137.2MB in the beginning and 120.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.73ms. Allocated memory is still 167.8MB. Free memory was 120.5MB in the beginning and 118.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.27ms. Allocated memory is still 167.8MB. Free memory was 118.3MB in the beginning and 116.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.59ms. Allocated memory is still 167.8MB. Free memory was 116.9MB in the beginning and 104.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 22401.97ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 104.3MB in the beginning and 96.1MB in the end (delta: 8.2MB). Peak memory consumption was 134.6MB. Max. memory is 16.1GB. * Witness Printer took 8.51ms. Allocated memory is still 293.6MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[~nondetString1~0!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc9!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[~s2!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc8!base] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function NULL and consists of 5 locations. One deterministic module has affine ranking function (8589934589 + (-2 * i)) and consists of 6 locations. One deterministic module has affine ranking function NULL and consists of 5 locations. One deterministic module has affine ranking function NULL and consists of 4 locations. One nondeterministic module has affine ranking function NULL and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 19 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 22.3s and 9 iterations. TraceHistogramMax:2. Analysis of lassos took 20.1s. Construction of modules took 0.3s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 265 mSDsluCounter, 424 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 271 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 153 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital218 mio100 ax109 hnf100 lsp85 ukn72 mio100 lsp37 div142 bol100 ite100 ukn100 eq172 hnf90 smp83 dnf114 smp100 tf100 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 22:42:30,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:30,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-06 22:42:30,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46611c57-4bc5-460e-8704-fdd7eb9e5977/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE