./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cbd0b45e3a19519452fbcf6fd1c6a1f47a14b8d70acc30b1e21888135763cd85 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:09,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:09,587 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:49:09,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:09,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:09,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:09,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:09,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:09,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:09,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:09,621 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:09,622 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:49:09,623 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:49:09,623 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:49:09,624 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:49:09,624 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:49:09,625 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:49:09,625 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:09,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:49:09,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:09,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:09,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:49:09,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:49:09,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:49:09,628 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:49:09,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:09,629 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:49:09,629 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:09,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:09,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:09,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:09,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:09,632 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:49:09,632 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_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbd0b45e3a19519452fbcf6fd1c6a1f47a14b8d70acc30b1e21888135763cd85 [2023-11-19 07:49:09,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:09,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:09,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:09,989 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:09,989 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:09,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i [2023-11-19 07:49:13,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:13,296 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:13,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/sv-benchmarks/c/termination-15/cstrcspn_reverse_alloca.i [2023-11-19 07:49:13,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/data/d41229313/d7ad1cd0c2f54a80893771c6ff3ec75f/FLAGc84b295c0 [2023-11-19 07:49:13,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/data/d41229313/d7ad1cd0c2f54a80893771c6ff3ec75f [2023-11-19 07:49:13,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:13,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:13,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:13,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:13,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:13,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:13,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d855a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13, skipping insertion in model container [2023-11-19 07:49:13,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:13,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:13,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:13,819 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:13,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:13,938 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:13,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13 WrapperNode [2023-11-19 07:49:13,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:13,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:13,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:13,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:13,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:13,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:13,999 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2023-11-19 07:49:14,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:14,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:14,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:14,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:14,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:14,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:14,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:14,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:14,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (1/1) ... [2023-11-19 07:49:14,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:14,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:14,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:14,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:14,332 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:14,336 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:14,576 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:14,583 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:14,583 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:49:14,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:14 BoogieIcfgContainer [2023-11-19 07:49:14,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:14,587 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:49:14,587 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:49:14,595 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:49:14,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:49:14,596 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:49:13" (1/3) ... [2023-11-19 07:49:14,597 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dde1cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:49:14, skipping insertion in model container [2023-11-19 07:49:14,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:49:14,597 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:13" (2/3) ... [2023-11-19 07:49:14,599 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dde1cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:49:14, skipping insertion in model container [2023-11-19 07:49:14,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:49:14,599 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:14" (3/3) ... [2023-11-19 07:49:14,600 INFO L332 chiAutomizerObserver]: Analyzing ICFG cstrcspn_reverse_alloca.i [2023-11-19 07:49:14,677 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:49:14,679 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:49:14,679 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:49:14,679 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:49:14,679 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:49:14,680 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:49:14,680 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:49:14,681 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:49:14,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:14,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:49:14,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:49:14,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:49:14,710 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 07:49:14,711 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:49:14,711 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:49:14,712 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:14,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:49:14,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:49:14,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:49:14,715 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 07:49:14,716 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:49:14,725 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet213#1, main_#t~nondet214#1, main_#t~malloc215#1.base, main_#t~malloc215#1.offset, main_#t~malloc216#1.base, main_#t~malloc216#1.offset, main_#t~ret217#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~nondet213#1;main_~length1~0#1 := main_#t~nondet213#1;havoc main_#t~nondet213#1;havoc main_#t~nondet214#1;main_~length2~0#1 := main_#t~nondet214#1;havoc main_#t~nondet214#1; 16#L382true assume !(main_~length1~0#1 < 1); 14#L382-2true assume !(main_~length2~0#1 < 1); 3#L385-1true call main_#t~malloc215#1.base, main_#t~malloc215#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc215#1.base, main_#t~malloc215#1.offset;call main_#t~malloc216#1.base, main_#t~malloc216#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc216#1.base, main_#t~malloc216#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#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 cstrcspn_#res#1;havoc cstrcspn_#t~mem207#1, cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset, cstrcspn_#t~mem208#1, cstrcspn_#t~mem209#1, cstrcspn_#t~short210#1, cstrcspn_#t~mem212#1, cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset, cstrcspn_#t~mem206#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 7#L369-4true [2023-11-19 07:49:14,733 INFO L750 eck$LassoCheckResult]: Loop: 7#L369-4true call cstrcspn_#t~mem206#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 15#L369-1true assume !!(0 != cstrcspn_#t~mem206#1);havoc cstrcspn_#t~mem206#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem207#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem207#1;havoc cstrcspn_#t~mem207#1; 5#L372-5true assume !true; 4#L372-6true call cstrcspn_#t~mem212#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 19#L374true assume !(cstrcspn_#t~mem212#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem212#1; 8#L369-3true cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset - 1;havoc cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset; 7#L369-4true [2023-11-19 07:49:14,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:14,739 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2023-11-19 07:49:14,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:14,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688726213] [2023-11-19 07:49:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:14,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:14,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:14,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:14,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:14,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2023-11-19 07:49:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:14,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032850742] [2023-11-19 07:49:14,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:14,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:15,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:15,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032850742] [2023-11-19 07:49:15,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032850742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:15,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:15,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:49:15,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509061140] [2023-11-19 07:49:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:15,008 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-19 07:49:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:49:15,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:49:15,044 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:15,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:15,052 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2023-11-19 07:49:15,053 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2023-11-19 07:49:15,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:49:15,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2023-11-19 07:49:15,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-19 07:49:15,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-19 07:49:15,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-11-19 07:49:15,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:49:15,062 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-19 07:49:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-11-19 07:49:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-19 07:49:15,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 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) [2023-11-19 07:49:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2023-11-19 07:49:15,092 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-19 07:49:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:49:15,108 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-19 07:49:15,108 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:49:15,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2023-11-19 07:49:15,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:49:15,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:49:15,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:49:15,112 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-19 07:49:15,112 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:15,113 INFO L748 eck$LassoCheckResult]: Stem: 55#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 50#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet213#1, main_#t~nondet214#1, main_#t~malloc215#1.base, main_#t~malloc215#1.offset, main_#t~malloc216#1.base, main_#t~malloc216#1.offset, main_#t~ret217#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~nondet213#1;main_~length1~0#1 := main_#t~nondet213#1;havoc main_#t~nondet213#1;havoc main_#t~nondet214#1;main_~length2~0#1 := main_#t~nondet214#1;havoc main_#t~nondet214#1; 51#L382 assume !(main_~length1~0#1 < 1); 56#L382-2 assume !(main_~length2~0#1 < 1); 44#L385-1 call main_#t~malloc215#1.base, main_#t~malloc215#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc215#1.base, main_#t~malloc215#1.offset;call main_#t~malloc216#1.base, main_#t~malloc216#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc216#1.base, main_#t~malloc216#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#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 cstrcspn_#res#1;havoc cstrcspn_#t~mem207#1, cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset, cstrcspn_#t~mem208#1, cstrcspn_#t~mem209#1, cstrcspn_#t~short210#1, cstrcspn_#t~mem212#1, cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset, cstrcspn_#t~mem206#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 45#L369-4 [2023-11-19 07:49:15,114 INFO L750 eck$LassoCheckResult]: Loop: 45#L369-4 call cstrcspn_#t~mem206#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 52#L369-1 assume !!(0 != cstrcspn_#t~mem206#1);havoc cstrcspn_#t~mem206#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem207#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem207#1;havoc cstrcspn_#t~mem207#1; 48#L372-5 call cstrcspn_#t~mem208#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := 0 != cstrcspn_#t~mem208#1; 49#L372-1 assume cstrcspn_#t~short210#1;call cstrcspn_#t~mem209#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := cstrcspn_#t~mem209#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 54#L372-3 assume !cstrcspn_#t~short210#1;havoc cstrcspn_#t~mem208#1;havoc cstrcspn_#t~mem209#1;havoc cstrcspn_#t~short210#1; 46#L372-6 call cstrcspn_#t~mem212#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 47#L374 assume !(cstrcspn_#t~mem212#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem212#1; 53#L369-3 cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset - 1;havoc cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset; 45#L369-4 [2023-11-19 07:49:15,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:15,115 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2023-11-19 07:49:15,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:15,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280341755] [2023-11-19 07:49:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:15,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:15,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:15,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2023-11-19 07:49:15,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:15,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293328666] [2023-11-19 07:49:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:15,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:15,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:15,229 INFO L85 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2023-11-19 07:49:15,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:15,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042943566] [2023-11-19 07:49:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:15,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,324 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:15,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:16,543 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:49:16,544 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:49:16,544 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:49:16,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:49:16,545 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:49:16,545 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:16,545 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:49:16,545 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:49:16,545 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_reverse_alloca.i_Iteration2_Lasso [2023-11-19 07:49:16,546 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:49:16,546 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:49:16,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:16,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,435 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,441 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,450 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,452 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,464 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:17,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:18,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:49:18,516 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:49:18,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,531 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 [2023-11-19 07:49:18,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:49:18,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:18,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:18,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:18,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:18,562 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:18,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 07:49:18,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:49:18,597 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 [2023-11-19 07:49:18,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:18,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:18,611 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:18,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:18,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:18,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,639 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:49:18,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:49:18,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:18,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:18,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:18,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:18,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:18,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:49:18,730 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 [2023-11-19 07:49:18,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:18,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:18,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:18,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:18,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:18,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,818 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 [2023-11-19 07:49:18,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:18,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:18,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:18,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:49:18,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:18,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:18,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:49:18,878 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 [2023-11-19 07:49:18,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:18,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:18,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:18,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:18,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:18,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,909 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:49:18,911 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 [2023-11-19 07:49:18,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:18,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:18,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:18,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:18,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:18,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:18,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:18,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:18,938 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:18,940 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 [2023-11-19 07:49:18,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:49:18,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:18,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:18,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:18,950 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2023-11-19 07:49:18,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:18,958 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-19 07:49:18,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:18,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:19,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:19,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:19,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:19,006 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:19,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:49:19,010 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 [2023-11-19 07:49:19,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:19,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:19,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:19,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:19,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:19,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:19,080 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:49:19,168 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-19 07:49:19,168 INFO L444 ModelExtractionUtils]: 13 out of 49 variables were initially zero. Simplification set additionally 33 variables to zero. [2023-11-19 07:49:19,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:19,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:19,207 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:19,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:49:19,213 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:49:19,225 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-19 07:49:19,225 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:49:19,225 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~sc1~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc215#1.base)_1) = 2*ULTIMATE.start_cstrcspn_~sc1~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc215#1.base)_1 Supporting invariants [] [2023-11-19 07:49:19,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:19,299 INFO L156 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2023-11-19 07:49:19,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[#t~malloc215!base] could not be translated [2023-11-19 07:49:19,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:19,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:49:19,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:19,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:49:19,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:19,556 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 [2023-11-19 07:49:19,558 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-11-19 07:49:19,641 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) Result 21 states and 28 transitions. Complement of second has 4 states. [2023-11-19 07:49:19,642 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 [2023-11-19 07:49:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-11-19 07:49:19,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2023-11-19 07:49:19,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-19 07:49:19,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:19,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2023-11-19 07:49:19,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:19,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2023-11-19 07:49:19,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:19,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2023-11-19 07:49:19,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:49:19,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2023-11-19 07:49:19,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-19 07:49:19,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-19 07:49:19,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2023-11-19 07:49:19,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:49:19,655 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2023-11-19 07:49:19,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2023-11-19 07:49:19,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-19 07:49:19,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:19,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2023-11-19 07:49:19,658 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2023-11-19 07:49:19,659 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2023-11-19 07:49:19,659 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:49:19,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2023-11-19 07:49:19,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:49:19,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:49:19,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:49:19,665 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:19,665 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:49:19,665 INFO L748 eck$LassoCheckResult]: Stem: 197#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 189#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet213#1, main_#t~nondet214#1, main_#t~malloc215#1.base, main_#t~malloc215#1.offset, main_#t~malloc216#1.base, main_#t~malloc216#1.offset, main_#t~ret217#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~nondet213#1;main_~length1~0#1 := main_#t~nondet213#1;havoc main_#t~nondet213#1;havoc main_#t~nondet214#1;main_~length2~0#1 := main_#t~nondet214#1;havoc main_#t~nondet214#1; 190#L382 assume !(main_~length1~0#1 < 1); 198#L382-2 assume !(main_~length2~0#1 < 1); 181#L385-1 call main_#t~malloc215#1.base, main_#t~malloc215#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc215#1.base, main_#t~malloc215#1.offset;call main_#t~malloc216#1.base, main_#t~malloc216#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc216#1.base, main_#t~malloc216#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#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 cstrcspn_#res#1;havoc cstrcspn_#t~mem207#1, cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset, cstrcspn_#t~mem208#1, cstrcspn_#t~mem209#1, cstrcspn_#t~short210#1, cstrcspn_#t~mem212#1, cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset, cstrcspn_#t~mem206#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 182#L369-4 call cstrcspn_#t~mem206#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 192#L369-1 assume !!(0 != cstrcspn_#t~mem206#1);havoc cstrcspn_#t~mem206#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem207#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem207#1;havoc cstrcspn_#t~mem207#1; 185#L372-5 [2023-11-19 07:49:19,665 INFO L750 eck$LassoCheckResult]: Loop: 185#L372-5 call cstrcspn_#t~mem208#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := 0 != cstrcspn_#t~mem208#1; 186#L372-1 assume cstrcspn_#t~short210#1;call cstrcspn_#t~mem209#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := cstrcspn_#t~mem209#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 195#L372-3 assume !!cstrcspn_#t~short210#1;havoc cstrcspn_#t~mem208#1;havoc cstrcspn_#t~mem209#1;havoc cstrcspn_#t~short210#1;cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset - 1;havoc cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset; 185#L372-5 [2023-11-19 07:49:19,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:19,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2023-11-19 07:49:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:19,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965437550] [2023-11-19 07:49:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:19,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:19,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:19,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:19,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2023-11-19 07:49:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:19,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98721196] [2023-11-19 07:49:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:19,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:19,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:19,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:19,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2023-11-19 07:49:19,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:19,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217681714] [2023-11-19 07:49:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:19,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:19,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:19,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:20,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:20,852 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:49:20,852 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:49:20,852 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:49:20,853 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:49:20,853 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:49:20,853 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:20,853 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:49:20,853 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:49:20,853 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_reverse_alloca.i_Iteration3_Lasso [2023-11-19 07:49:20,853 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:49:20,853 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:49:20,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,863 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:20,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:21,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:21,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:21,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:21,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:21,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:22,627 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:49:22,633 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:49:22,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:22,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:22,636 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:22,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:49:22,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:49:22,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:22,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:22,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:22,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:22,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:22,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:22,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:22,667 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:22,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:22,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:22,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:22,702 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:22,706 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 [2023-11-19 07:49:22,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:49:22,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:22,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:22,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:22,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:22,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:22,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:22,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:22,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:22,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:22,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:22,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:22,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:22,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:49:22,762 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 [2023-11-19 07:49:22,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:22,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:22,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:22,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:22,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:22,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:22,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:22,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:22,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:22,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:22,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:22,818 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:22,821 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 [2023-11-19 07:49:22,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:22,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:22,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:22,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:22,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:22,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:22,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:22,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:49:22,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:22,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:22,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:22,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:22,870 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:22,875 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 [2023-11-19 07:49:22,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:49:22,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:22,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:22,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:22,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:22,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:22,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:22,913 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:22,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:22,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:22,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:22,939 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:22,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:49:22,945 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 [2023-11-19 07:49:22,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:22,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:22,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:22,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:22,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:22,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:22,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:22,964 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:22,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:22,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:22,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:22,978 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:22,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:49:22,982 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 [2023-11-19 07:49:22,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:22,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:22,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:22,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:22,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:22,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:23,017 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:23,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:23,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:23,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,044 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,055 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 [2023-11-19 07:49:23,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:49:23,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:23,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:23,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:23,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:23,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:23,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:23,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:23,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:23,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:23,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:23,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,104 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,119 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 [2023-11-19 07:49:23,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 07:49:23,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:23,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:23,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:23,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:23,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:23,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:23,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:23,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:23,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:23,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:23,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,149 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:49:23,154 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 [2023-11-19 07:49:23,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:23,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:23,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:23,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:23,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:23,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:23,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:23,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:23,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:23,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:23,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,179 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:49:23,181 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 [2023-11-19 07:49:23,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:23,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:23,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:23,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:23,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:23,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:23,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:23,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:23,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:23,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:23,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,241 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,246 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 [2023-11-19 07:49:23,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:23,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:23,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:23,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:23,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:23,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:23,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:23,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:49:23,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:23,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:23,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:23,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,294 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,298 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 [2023-11-19 07:49:23,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:49:23,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:23,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:23,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:23,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:23,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:23,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:23,357 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:49:23,478 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2023-11-19 07:49:23,478 INFO L444 ModelExtractionUtils]: 10 out of 49 variables were initially zero. Simplification set additionally 36 variables to zero. [2023-11-19 07:49:23,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:23,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:23,482 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:23,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:49:23,491 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:49:23,527 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-19 07:49:23,527 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:49:23,527 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0#1.offset) = 2*ULTIMATE.start_cstrcspn_~s~0#1.offset + 1 Supporting invariants [] [2023-11-19 07:49:23,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:23,630 INFO L156 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2023-11-19 07:49:23,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:23,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:49:23,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:23,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:49:23,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:23,703 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 [2023-11-19 07:49:23,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:23,729 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 43 states and 57 transitions. Complement of second has 5 states. [2023-11-19 07:49:23,729 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 [2023-11-19 07:49:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2023-11-19 07:49:23,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-19 07:49:23,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:23,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-19 07:49:23,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:23,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-19 07:49:23,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:23,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2023-11-19 07:49:23,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:49:23,734 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2023-11-19 07:49:23,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-19 07:49:23,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-19 07:49:23,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2023-11-19 07:49:23,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:49:23,735 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2023-11-19 07:49:23,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2023-11-19 07:49:23,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2023-11-19 07:49:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 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) [2023-11-19 07:49:23,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2023-11-19 07:49:23,743 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-19 07:49:23,743 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-19 07:49:23,743 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:49:23,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2023-11-19 07:49:23,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:49:23,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:49:23,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:49:23,746 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:23,746 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:49:23,746 INFO L748 eck$LassoCheckResult]: Stem: 374#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 364#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet213#1, main_#t~nondet214#1, main_#t~malloc215#1.base, main_#t~malloc215#1.offset, main_#t~malloc216#1.base, main_#t~malloc216#1.offset, main_#t~ret217#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~nondet213#1;main_~length1~0#1 := main_#t~nondet213#1;havoc main_#t~nondet213#1;havoc main_#t~nondet214#1;main_~length2~0#1 := main_#t~nondet214#1;havoc main_#t~nondet214#1; 365#L382 assume !(main_~length1~0#1 < 1); 375#L382-2 assume !(main_~length2~0#1 < 1); 356#L385-1 call main_#t~malloc215#1.base, main_#t~malloc215#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc215#1.base, main_#t~malloc215#1.offset;call main_#t~malloc216#1.base, main_#t~malloc216#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc216#1.base, main_#t~malloc216#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#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 cstrcspn_#res#1;havoc cstrcspn_#t~mem207#1, cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset, cstrcspn_#t~mem208#1, cstrcspn_#t~mem209#1, cstrcspn_#t~short210#1, cstrcspn_#t~mem212#1, cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset, cstrcspn_#t~mem206#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 357#L369-4 call cstrcspn_#t~mem206#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 366#L369-1 assume !!(0 != cstrcspn_#t~mem206#1);havoc cstrcspn_#t~mem206#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem207#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem207#1;havoc cstrcspn_#t~mem207#1; 376#L372-5 call cstrcspn_#t~mem208#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := 0 != cstrcspn_#t~mem208#1; 372#L372-1 assume !cstrcspn_#t~short210#1; 373#L372-3 assume !cstrcspn_#t~short210#1;havoc cstrcspn_#t~mem208#1;havoc cstrcspn_#t~mem209#1;havoc cstrcspn_#t~short210#1; 358#L372-6 call cstrcspn_#t~mem212#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 359#L374 assume !(cstrcspn_#t~mem212#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem212#1; 370#L369-3 cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset - 1;havoc cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset; 367#L369-4 call cstrcspn_#t~mem206#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 368#L369-1 assume !!(0 != cstrcspn_#t~mem206#1);havoc cstrcspn_#t~mem206#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem207#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem207#1;havoc cstrcspn_#t~mem207#1; 360#L372-5 [2023-11-19 07:49:23,746 INFO L750 eck$LassoCheckResult]: Loop: 360#L372-5 call cstrcspn_#t~mem208#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := 0 != cstrcspn_#t~mem208#1; 361#L372-1 assume cstrcspn_#t~short210#1;call cstrcspn_#t~mem209#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := cstrcspn_#t~mem209#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 371#L372-3 assume !!cstrcspn_#t~short210#1;havoc cstrcspn_#t~mem208#1;havoc cstrcspn_#t~mem209#1;havoc cstrcspn_#t~short210#1;cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset - 1;havoc cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset; 360#L372-5 [2023-11-19 07:49:23,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:23,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2023-11-19 07:49:23,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:23,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004286967] [2023-11-19 07:49:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:23,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:23,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:23,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:23,811 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2023-11-19 07:49:23,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:23,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129147684] [2023-11-19 07:49:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:23,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:23,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:23,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:23,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2023-11-19 07:49:23,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:23,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518546926] [2023-11-19 07:49:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:23,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:24,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:24,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518546926] [2023-11-19 07:49:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518546926] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:24,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370322429] [2023-11-19 07:49:24,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:24,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:24,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:24,112 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:24,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-19 07:49:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:24,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-19 07:49:24,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:24,252 INFO L378 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-19 07:49:24,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:24,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:49:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:24,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370322429] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:49:24,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:49:24,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 11 [2023-11-19 07:49:24,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946959625] [2023-11-19 07:49:24,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:49:24,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:24,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:49:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:49:24,498 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:24,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:24,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:24,652 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2023-11-19 07:49:24,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2023-11-19 07:49:24,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:49:24,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2023-11-19 07:49:24,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-11-19 07:49:24,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-19 07:49:24,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2023-11-19 07:49:24,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:49:24,657 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 53 transitions. [2023-11-19 07:49:24,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2023-11-19 07:49:24,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2023-11-19 07:49:24,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:24,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-11-19 07:49:24,661 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-19 07:49:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:49:24,663 INFO L428 stractBuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-19 07:49:24,663 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:49:24,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2023-11-19 07:49:24,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:49:24,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:49:24,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:49:24,665 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:24,665 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:49:24,665 INFO L748 eck$LassoCheckResult]: Stem: 579#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 569#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet213#1, main_#t~nondet214#1, main_#t~malloc215#1.base, main_#t~malloc215#1.offset, main_#t~malloc216#1.base, main_#t~malloc216#1.offset, main_#t~ret217#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~nondet213#1;main_~length1~0#1 := main_#t~nondet213#1;havoc main_#t~nondet213#1;havoc main_#t~nondet214#1;main_~length2~0#1 := main_#t~nondet214#1;havoc main_#t~nondet214#1; 570#L382 assume !(main_~length1~0#1 < 1); 580#L382-2 assume !(main_~length2~0#1 < 1); 561#L385-1 call main_#t~malloc215#1.base, main_#t~malloc215#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc215#1.base, main_#t~malloc215#1.offset;call main_#t~malloc216#1.base, main_#t~malloc216#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc216#1.base, main_#t~malloc216#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1);assume { :begin_inline_cstrcspn } true;cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset, cstrcspn_#in~s2#1.base, cstrcspn_#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 cstrcspn_#res#1;havoc cstrcspn_#t~mem207#1, cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset, cstrcspn_#t~mem208#1, cstrcspn_#t~mem209#1, cstrcspn_#t~short210#1, cstrcspn_#t~mem212#1, cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset, cstrcspn_#t~mem206#1, cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset, cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset, cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, cstrcspn_~c~0#1;cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset := cstrcspn_#in~s1#1.base, cstrcspn_#in~s1#1.offset;cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset := cstrcspn_#in~s2#1.base, cstrcspn_#in~s2#1.offset;havoc cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;havoc cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;havoc cstrcspn_~c~0#1;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_~s1#1.base, cstrcspn_~s1#1.offset; 562#L369-4 call cstrcspn_#t~mem206#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 571#L369-1 assume !!(0 != cstrcspn_#t~mem206#1);havoc cstrcspn_#t~mem206#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem207#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem207#1;havoc cstrcspn_#t~mem207#1; 585#L372-5 call cstrcspn_#t~mem208#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := 0 != cstrcspn_#t~mem208#1; 577#L372-1 assume cstrcspn_#t~short210#1;call cstrcspn_#t~mem209#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := cstrcspn_#t~mem209#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 578#L372-3 assume !cstrcspn_#t~short210#1;havoc cstrcspn_#t~mem208#1;havoc cstrcspn_#t~mem209#1;havoc cstrcspn_#t~short210#1; 563#L372-6 call cstrcspn_#t~mem212#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1); 564#L374 assume !(cstrcspn_#t~mem212#1 == cstrcspn_~c~0#1);havoc cstrcspn_#t~mem212#1; 575#L369-3 cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset := cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset;cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset := cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset - 1;havoc cstrcspn_#t~post205#1.base, cstrcspn_#t~post205#1.offset; 572#L369-4 call cstrcspn_#t~mem206#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1); 573#L369-1 assume !!(0 != cstrcspn_#t~mem206#1);havoc cstrcspn_#t~mem206#1;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_~s2#1.base, cstrcspn_~s2#1.offset;call cstrcspn_#t~mem207#1 := read~int(cstrcspn_~sc1~0#1.base, cstrcspn_~sc1~0#1.offset, 1);cstrcspn_~c~0#1 := cstrcspn_#t~mem207#1;havoc cstrcspn_#t~mem207#1; 565#L372-5 [2023-11-19 07:49:24,665 INFO L750 eck$LassoCheckResult]: Loop: 565#L372-5 call cstrcspn_#t~mem208#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := 0 != cstrcspn_#t~mem208#1; 566#L372-1 assume cstrcspn_#t~short210#1;call cstrcspn_#t~mem209#1 := read~int(cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset, 1);cstrcspn_#t~short210#1 := cstrcspn_#t~mem209#1 != (if cstrcspn_~c~0#1 % 256 <= 127 then cstrcspn_~c~0#1 % 256 else cstrcspn_~c~0#1 % 256 - 256); 576#L372-3 assume !!cstrcspn_#t~short210#1;havoc cstrcspn_#t~mem208#1;havoc cstrcspn_#t~mem209#1;havoc cstrcspn_#t~short210#1;cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset := cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset;cstrcspn_~s~0#1.base, cstrcspn_~s~0#1.offset := cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset - 1;havoc cstrcspn_#t~post211#1.base, cstrcspn_#t~post211#1.offset; 565#L372-5 [2023-11-19 07:49:24,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2023-11-19 07:49:24,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:24,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358039927] [2023-11-19 07:49:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:24,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:24,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:24,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:24,714 INFO L85 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2023-11-19 07:49:24,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:24,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721153524] [2023-11-19 07:49:24,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:24,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:24,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:24,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:24,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:24,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2023-11-19 07:49:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:24,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063727762] [2023-11-19 07:49:24,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:24,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:24,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:49:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:49:24,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:49:26,491 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:49:26,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:49:26,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:49:26,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:49:26,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:49:26,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:26,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:49:26,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:49:26,493 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn_reverse_alloca.i_Iteration5_Lasso [2023-11-19 07:49:26,493 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:49:26,493 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:49:26,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:26,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:27,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:49:29,336 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:49:29,337 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:49:29,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:29,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:29,341 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:29,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:49:29,343 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 [2023-11-19 07:49:29,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:29,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:49:29,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:29,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:29,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:29,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:49:29,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:49:29,365 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:29,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:29,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:29,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:29,379 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:29,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:49:29,380 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 [2023-11-19 07:49:29,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:29,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:29,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:29,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:29,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:29,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:29,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:49:29,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-19 07:49:29,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:29,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:29,408 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:29,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:49:29,410 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 [2023-11-19 07:49:29,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:49:29,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:49:29,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:49:29,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:49:29,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:49:29,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:49:29,469 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:49:29,518 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2023-11-19 07:49:29,519 INFO L444 ModelExtractionUtils]: 10 out of 49 variables were initially zero. Simplification set additionally 36 variables to zero. [2023-11-19 07:49:29,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:49:29,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:29,520 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:29,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:49:29,523 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:49:29,534 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-19 07:49:29,534 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:49:29,534 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0#1.offset, v_rep(select #length ULTIMATE.start_cstrcspn_~s~0#1.base)_3) = 2*ULTIMATE.start_cstrcspn_~s~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrcspn_~s~0#1.base)_3 Supporting invariants [] [2023-11-19 07:49:29,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-19 07:49:29,733 INFO L156 tatePredicateManager]: 30 out of 30 supporting invariants were superfluous and have been removed [2023-11-19 07:49:29,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~s~0!base] could not be translated [2023-11-19 07:49:29,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:29,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:49:29,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:29,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:49:29,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:29,837 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 [2023-11-19 07:49:29,838 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2023-11-19 07:49:29,868 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 46 states and 58 transitions. Complement of second has 5 states. [2023-11-19 07:49:29,869 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 [2023-11-19 07:49:29,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2023-11-19 07:49:29,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2023-11-19 07:49:29,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2023-11-19 07:49:29,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:29,871 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:49:29,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:29,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:49:29,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:29,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:49:29,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:29,974 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 [2023-11-19 07:49:29,975 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2023-11-19 07:49:30,004 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 46 states and 58 transitions. Complement of second has 5 states. [2023-11-19 07:49:30,005 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 [2023-11-19 07:49:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2023-11-19 07:49:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2023-11-19 07:49:30,006 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2023-11-19 07:49:30,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:30,007 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 07:49:30,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:30,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:49:30,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:30,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:49:30,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:30,115 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 [2023-11-19 07:49:30,116 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2023-11-19 07:49:30,143 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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 45 states and 60 transitions. Complement of second has 4 states. [2023-11-19 07:49:30,146 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 [2023-11-19 07:49:30,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2023-11-19 07:49:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2023-11-19 07:49:30,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2023-11-19 07:49:30,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:30,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2023-11-19 07:49:30,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:30,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2023-11-19 07:49:30,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:49:30,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2023-11-19 07:49:30,152 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:49:30,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2023-11-19 07:49:30,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:49:30,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:49:30,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:49:30,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:49:30,153 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:49:30,153 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:49:30,154 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:49:30,154 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:49:30,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:49:30,154 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:49:30,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:49:30,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:49:30 BoogieIcfgContainer [2023-11-19 07:49:30,160 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:49:30,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:49:30,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:49:30,161 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:49:30,162 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:14" (3/4) ... [2023-11-19 07:49:30,163 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:49:30,165 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:49:30,165 INFO L158 Benchmark]: Toolchain (without parser) took 16823.63ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 123.0MB in the beginning and 96.0MB in the end (delta: 27.1MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. [2023-11-19 07:49:30,166 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:30,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.88ms. Allocated memory is still 161.5MB. Free memory was 123.0MB in the beginning and 104.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:49:30,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.97ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 102.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:49:30,167 INFO L158 Benchmark]: Boogie Preprocessor took 59.70ms. Allocated memory is still 161.5MB. Free memory was 102.7MB in the beginning and 132.6MB in the end (delta: -29.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:49:30,168 INFO L158 Benchmark]: RCFGBuilder took 523.51ms. Allocated memory is still 161.5MB. Free memory was 132.6MB in the beginning and 118.8MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:49:30,168 INFO L158 Benchmark]: BuchiAutomizer took 15573.30ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 118.8MB in the beginning and 96.0MB in the end (delta: 22.8MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. [2023-11-19 07:49:30,169 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 234.9MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:49:30,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.88ms. Allocated memory is still 161.5MB. Free memory was 123.0MB in the beginning and 104.8MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.97ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 102.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.70ms. Allocated memory is still 161.5MB. Free memory was 102.7MB in the beginning and 132.6MB in the end (delta: -29.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 523.51ms. Allocated memory is still 161.5MB. Free memory was 132.6MB in the beginning and 118.8MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 15573.30ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 118.8MB in the beginning and 96.0MB in the end (delta: 22.8MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 234.9MB. Free memory is still 96.0MB. 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[#t~malloc215!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[~s~0!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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function null and consists of 3 locations. One deterministic module has affine ranking function null and consists of 3 locations. One nondeterministic module has affine ranking function null and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 14.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 111 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital285 mio100 ax100 hnf100 lsp106 ukn77 mio100 lsp44 div170 bol100 ite100 ukn100 eq165 hnf92 smp71 dnf610 smp27 tf100 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 0 MotzkinApplications: 8 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! [2023-11-19 07:49:30,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:30,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-19 07:49:30,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7734bca5-460a-4fd9-a629-07dcadf54ae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE