./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/basename-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/basename-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU --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 2e90cfbacdda20e6be76d151b413bd2dd94f7cfd4eb0e599012526f6643aab85 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:46,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:47,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:02:47,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:47,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:47,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:47,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:47,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:47,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:02:47,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:02:47,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:47,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:47,133 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:47,136 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:02:47,136 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:02:47,137 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:02:47,137 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:02:47,137 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:02:47,138 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:02:47,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:47,142 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:02:47,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:47,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:47,143 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:02:47,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:02:47,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:02:47,144 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:47,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:02:47,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:02:47,145 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:02:47,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:47,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:47,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:47,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:47,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:47,148 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:02:47,149 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_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e90cfbacdda20e6be76d151b413bd2dd94f7cfd4eb0e599012526f6643aab85 [2024-10-31 22:02:47,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:47,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:47,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:47,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:47,467 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:47,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-dietlibc/basename-3.i Unable to find full path for "g++" [2024-10-31 22:02:49,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:50,209 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:50,210 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/sv-benchmarks/c/termination-dietlibc/basename-3.i [2024-10-31 22:02:50,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/data/3cb9bf90e/5ddbe9314e954c7e906fab627a2c2978/FLAG2356459e2 [2024-10-31 22:02:50,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/data/3cb9bf90e/5ddbe9314e954c7e906fab627a2c2978 [2024-10-31 22:02:50,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:50,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:50,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:50,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:50,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:50,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b196e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50, skipping insertion in model container [2024-10-31 22:02:50,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,317 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:50,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:50,759 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:50,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:50,858 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:50,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50 WrapperNode [2024-10-31 22:02:50,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:50,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:50,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:50,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:50,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,916 INFO L138 Inliner]: procedures = 114, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-10-31 22:02:50,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:50,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:50,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:50,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:50,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,938 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,962 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-10-31 22:02:50,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:50,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:50,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:50,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:50,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (1/1) ... [2024-10-31 22:02:50,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:51,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:51,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:51,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:02:51,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:02:51,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:02:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:02:51,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:51,155 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:51,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:51,338 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-10-31 22:02:51,338 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:51,352 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:51,353 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:02:51,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:51 BoogieIcfgContainer [2024-10-31 22:02:51,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:51,357 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:02:51,357 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:02:51,361 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:02:51,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:02:51,362 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:02:50" (1/3) ... [2024-10-31 22:02:51,363 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4713a100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:02:51, skipping insertion in model container [2024-10-31 22:02:51,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:02:51,363 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:50" (2/3) ... [2024-10-31 22:02:51,364 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4713a100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:02:51, skipping insertion in model container [2024-10-31 22:02:51,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:02:51,364 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:51" (3/3) ... [2024-10-31 22:02:51,366 INFO L332 chiAutomizerObserver]: Analyzing ICFG basename-3.i [2024-10-31 22:02:51,421 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:02:51,422 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:02:51,422 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:02:51,422 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:02:51,422 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:02:51,422 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:02:51,423 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:02:51,423 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:02:51,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2024-10-31 22:02:51,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:02:51,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:51,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:51,453 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:02:51,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:02:51,453 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:02:51,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2024-10-31 22:02:51,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:02:51,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:51,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:51,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:02:51,455 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:02:51,461 INFO L745 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 6#L531true assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 14#L517true [2024-10-31 22:02:51,462 INFO L747 eck$LassoCheckResult]: Loop: 14#L517true assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 12#L510-1true assume !true;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 16#strrchr_returnLabel#1true basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 7#L518true assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 17#L519true assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 8#L520true assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 14#L517true [2024-10-31 22:02:51,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-10-31 22:02:51,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:51,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302720022] [2024-10-31 22:02:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:51,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:51,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:51,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:51,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:51,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1171953214, now seen corresponding path program 1 times [2024-10-31 22:02:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:51,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74581479] [2024-10-31 22:02:51,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:51,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:51,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:51,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:51,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74581479] [2024-10-31 22:02:51,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74581479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:51,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:51,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:51,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191466051] [2024-10-31 22:02:51,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:51,744 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:02:51,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:51,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:02:51,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:51,779 INFO L87 Difference]: Start difference. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 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) [2024-10-31 22:02:51,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:51,786 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2024-10-31 22:02:51,787 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 21 transitions. [2024-10-31 22:02:51,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:02:51,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 14 transitions. [2024-10-31 22:02:51,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-10-31 22:02:51,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:02:51,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2024-10-31 22:02:51,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:02:51,796 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-31 22:02:51,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2024-10-31 22:02:51,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-31 22:02:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-10-31 22:02:51,821 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-31 22:02:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:02:51,825 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-31 22:02:51,825 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:02:51,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2024-10-31 22:02:51,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-10-31 22:02:51,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:51,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:51,827 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:02:51,827 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:51,827 INFO L745 eck$LassoCheckResult]: Stem: 44#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 45#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 46#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 47#L517 [2024-10-31 22:02:51,827 INFO L747 eck$LassoCheckResult]: Loop: 47#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 43#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 40#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 41#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 42#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 51#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 48#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 49#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 50#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 47#L517 [2024-10-31 22:02:51,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:51,828 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2024-10-31 22:02:51,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:51,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278791715] [2024-10-31 22:02:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:51,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:51,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:51,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:51,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:51,879 INFO L85 PathProgramCache]: Analyzing trace with hash -487094312, now seen corresponding path program 1 times [2024-10-31 22:02:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:51,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888579266] [2024-10-31 22:02:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:52,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:52,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888579266] [2024-10-31 22:02:52,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888579266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:52,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:52,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:52,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247790208] [2024-10-31 22:02:52,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:52,182 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:02:52,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:52,183 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. cyclomatic complexity: 3 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:52,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:52,312 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2024-10-31 22:02:52,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2024-10-31 22:02:52,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2024-10-31 22:02:52,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 23 states and 28 transitions. [2024-10-31 22:02:52,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-10-31 22:02:52,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2024-10-31 22:02:52,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2024-10-31 22:02:52,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:02:52,318 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 28 transitions. [2024-10-31 22:02:52,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2024-10-31 22:02:52,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2024-10-31 22:02:52,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 17 states have internal predecessors, (22), 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) [2024-10-31 22:02:52,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-10-31 22:02:52,323 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-31 22:02:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:02:52,325 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-31 22:02:52,326 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:02:52,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2024-10-31 22:02:52,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-10-31 22:02:52,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:52,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:52,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:02:52,331 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:52,331 INFO L745 eck$LassoCheckResult]: Stem: 99#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 101#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 102#L517 [2024-10-31 22:02:52,332 INFO L747 eck$LassoCheckResult]: Loop: 102#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 106#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 93#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 95#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 108#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 107#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 103#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 104#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 105#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 102#L517 [2024-10-31 22:02:52,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:52,333 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 3 times [2024-10-31 22:02:52,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:52,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569777110] [2024-10-31 22:02:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:52,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:52,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:52,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:52,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:52,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1287913050, now seen corresponding path program 1 times [2024-10-31 22:02:52,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:52,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215703164] [2024-10-31 22:02:52,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:52,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:52,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:52,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215703164] [2024-10-31 22:02:52,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215703164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:52,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:52,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:52,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69245401] [2024-10-31 22:02:52,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:52,712 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:02:52,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:52,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:52,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:52,732 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. cyclomatic complexity: 5 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:52,806 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2024-10-31 22:02:52,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2024-10-31 22:02:52,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2024-10-31 22:02:52,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 22 states and 27 transitions. [2024-10-31 22:02:52,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2024-10-31 22:02:52,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2024-10-31 22:02:52,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2024-10-31 22:02:52,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:02:52,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-10-31 22:02:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2024-10-31 22:02:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2024-10-31 22:02:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 17 states have internal predecessors, (22), 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) [2024-10-31 22:02:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-10-31 22:02:52,814 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-31 22:02:52,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:52,816 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-31 22:02:52,816 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:02:52,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2024-10-31 22:02:52,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2024-10-31 22:02:52,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:52,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:52,817 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:02:52,818 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:52,818 INFO L745 eck$LassoCheckResult]: Stem: 153#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 154#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 155#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 156#L517 [2024-10-31 22:02:52,818 INFO L747 eck$LassoCheckResult]: Loop: 156#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 160#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 148#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 149#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 150#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 151#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 152#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 164#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 162#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 161#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 157#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 158#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 159#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 156#L517 [2024-10-31 22:02:52,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:52,820 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 4 times [2024-10-31 22:02:52,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:52,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052301897] [2024-10-31 22:02:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:52,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:52,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:52,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:52,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:52,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1065055040, now seen corresponding path program 1 times [2024-10-31 22:02:52,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:52,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073760075] [2024-10-31 22:02:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:52,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:53,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:53,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:53,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073760075] [2024-10-31 22:02:53,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073760075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:02:53,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228372647] [2024-10-31 22:02:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:53,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:53,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:53,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:53,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:02:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:53,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:02:53,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:53,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-10-31 22:02:53,390 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:53,390 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:02:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:53,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228372647] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:02:53,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:02:53,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-10-31 22:02:53,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624764642] [2024-10-31 22:02:53,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:02:53,657 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:02:53,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:53,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 22:02:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:02:53,660 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. cyclomatic complexity: 5 Second operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:53,835 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2024-10-31 22:02:53,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2024-10-31 22:02:53,836 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-10-31 22:02:53,837 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 31 transitions. [2024-10-31 22:02:53,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2024-10-31 22:02:53,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2024-10-31 22:02:53,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 31 transitions. [2024-10-31 22:02:53,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:02:53,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-10-31 22:02:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 31 transitions. [2024-10-31 22:02:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2024-10-31 22:02:53,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:53,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-10-31 22:02:53,840 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-10-31 22:02:53,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:02:53,842 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-10-31 22:02:53,842 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:02:53,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2024-10-31 22:02:53,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-31 22:02:53,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:53,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:53,843 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-31 22:02:53,843 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:53,844 INFO L745 eck$LassoCheckResult]: Stem: 293#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 295#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 296#L517 [2024-10-31 22:02:53,844 INFO L747 eck$LassoCheckResult]: Loop: 296#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 300#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 288#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 289#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 290#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 291#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 292#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 306#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 307#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 303#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 305#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 304#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 302#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 301#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 297#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 298#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 299#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 296#L517 [2024-10-31 22:02:53,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:53,845 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 5 times [2024-10-31 22:02:53,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:53,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658361316] [2024-10-31 22:02:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:53,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:53,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:53,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:53,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:53,862 INFO L85 PathProgramCache]: Analyzing trace with hash 26730794, now seen corresponding path program 1 times [2024-10-31 22:02:53,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:53,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364127078] [2024-10-31 22:02:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:53,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:53,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:53,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:53,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:53,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1156638439, now seen corresponding path program 1 times [2024-10-31 22:02:53,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:53,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127465537] [2024-10-31 22:02:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:53,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:53,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:53,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:54,790 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:02:54,791 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:02:54,792 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:02:54,792 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:02:54,792 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:02:54,792 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:54,793 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:02:54,793 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:02:54,793 INFO L132 ssoRankerPreferences]: Filename of dumped script: basename-3.i_Iteration5_Lasso [2024-10-31 22:02:54,793 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:02:54,794 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:02:54,815 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,826 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,836 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,842 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,846 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,868 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:54,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:55,431 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:02:55,436 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:02:55,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:02:55,443 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 [2024-10-31 22:02:55,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,466 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 22:02:55,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:02:55,493 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 [2024-10-31 22:02:55,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,511 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 22:02:55,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,533 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:02:55,536 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 [2024-10-31 22:02:55,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,557 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:02:55,581 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 [2024-10-31 22:02:55,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,601 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 22:02:55,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,623 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:02:55,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:55,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,649 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:02:55,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:02:55,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:55,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,683 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,697 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:02:55,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:55,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,712 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:02:55,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,726 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:02:55,728 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 [2024-10-31 22:02:55,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,742 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:02:55,765 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 [2024-10-31 22:02:55,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,777 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,782 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,796 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:02:55,799 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 [2024-10-31 22:02:55,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,813 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,828 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:02:55,831 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 [2024-10-31 22:02:55,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,846 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,860 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:02:55,862 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 [2024-10-31 22:02:55,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,877 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,890 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:02:55,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:55,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,910 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:02:55,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,929 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:02:55,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:55,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,945 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,959 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:02:55,960 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 [2024-10-31 22:02:55,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:55,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:55,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:55,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:55,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:55,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:55,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:55,974 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:55,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:55,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:55,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:55,987 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:55,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:02:55,989 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 [2024-10-31 22:02:55,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:56,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:56,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:56,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:56,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:56,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:56,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:56,002 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:56,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:56,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:56,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:56,017 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:56,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:02:56,021 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 [2024-10-31 22:02:56,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:56,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:56,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:56,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:56,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:56,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:56,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:56,040 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:56,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:56,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:56,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:56,056 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:56,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:02:56,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:56,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:56,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:56,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:56,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:56,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:56,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:56,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:56,073 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:56,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:56,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:56,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:56,089 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:56,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:02:56,090 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 [2024-10-31 22:02:56,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:56,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:56,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:56,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:56,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:56,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:56,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:56,107 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:02:56,112 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:02:56,112 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:02:56,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:56,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:56,116 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:56,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:02:56,118 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:02:56,119 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:02:56,119 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:02:56,119 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_basename_~path#1.base) (+ ULTIMATE.start_basename_~path#1.offset 1))_1) = 1*v_rep(select (select #memory_int#0 ULTIMATE.start_basename_~path#1.base) (+ ULTIMATE.start_basename_~path#1.offset 1))_1 Supporting invariants [] [2024-10-31 22:02:56,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:56,156 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2024-10-31 22:02:56,167 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-10-31 22:02:56,168 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#0,GLOBAL] [2024-10-31 22:02:56,168 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#0,GLOBAL],[IdentifierExpression[~path!base,]]] [2024-10-31 22:02:56,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:56,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:02:56,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:56,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:02:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:56,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-10-31 22:02:56,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:02:56,841 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 10 loop predicates [2024-10-31 22:02:56,843 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 5 Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:57,455 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 5. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 90 states and 108 transitions. Complement of second has 25 states. [2024-10-31 22:02:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 11 non-accepting loop states 1 accepting loop states [2024-10-31 22:02:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:57,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 37 transitions. [2024-10-31 22:02:57,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 37 transitions. Stem has 3 letters. Loop has 17 letters. [2024-10-31 22:02:57,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:57,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 37 transitions. Stem has 20 letters. Loop has 17 letters. [2024-10-31 22:02:57,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:57,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 37 transitions. Stem has 3 letters. Loop has 34 letters. [2024-10-31 22:02:57,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:57,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 108 transitions. [2024-10-31 22:02:57,469 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 31 [2024-10-31 22:02:57,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 68 states and 81 transitions. [2024-10-31 22:02:57,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2024-10-31 22:02:57,470 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2024-10-31 22:02:57,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 81 transitions. [2024-10-31 22:02:57,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:02:57,470 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 81 transitions. [2024-10-31 22:02:57,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 81 transitions. [2024-10-31 22:02:57,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 42. [2024-10-31 22:02:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 41 states have internal predecessors, (50), 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) [2024-10-31 22:02:57,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2024-10-31 22:02:57,478 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-10-31 22:02:57,478 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-10-31 22:02:57,478 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:02:57,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 50 transitions. [2024-10-31 22:02:57,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-31 22:02:57,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:57,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:57,482 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:02:57,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:02:57,482 INFO L745 eck$LassoCheckResult]: Stem: 541#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 542#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 543#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 544#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 553#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 574#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 534#L511-2 [2024-10-31 22:02:57,482 INFO L747 eck$LassoCheckResult]: Loop: 534#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 537#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 572#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 571#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 534#L511-2 [2024-10-31 22:02:57,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:57,483 INFO L85 PathProgramCache]: Analyzing trace with hash 889568330, now seen corresponding path program 1 times [2024-10-31 22:02:57,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144073202] [2024-10-31 22:02:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:57,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:57,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:57,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:57,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1543787, now seen corresponding path program 1 times [2024-10-31 22:02:57,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:57,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646474619] [2024-10-31 22:02:57,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:57,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:57,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:57,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:57,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:57,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2015101388, now seen corresponding path program 1 times [2024-10-31 22:02:57,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:57,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296938890] [2024-10-31 22:02:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:57,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:57,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:57,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:58,105 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:02:58,105 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:02:58,106 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:02:58,106 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:02:58,106 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:02:58,106 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:58,106 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:02:58,106 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:02:58,106 INFO L132 ssoRankerPreferences]: Filename of dumped script: basename-3.i_Iteration6_Lasso [2024-10-31 22:02:58,106 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:02:58,106 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:02:58,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,311 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,316 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,325 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,349 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:02:58,679 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:02:58,679 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:02:58,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:58,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:58,683 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:58,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:02:58,688 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 [2024-10-31 22:02:58,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:58,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:58,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:58,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:58,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:58,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:58,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:58,705 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:58,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:58,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:58,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:58,724 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:58,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:02:58,729 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 [2024-10-31 22:02:58,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:58,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:58,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:58,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:58,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:58,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:58,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:58,749 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:58,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:58,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:58,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:58,769 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:58,771 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 [2024-10-31 22:02:58,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:02:58,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:58,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:02:58,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:58,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:58,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:58,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:02:58,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:02:58,788 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:58,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-10-31 22:02:58,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:58,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:58,808 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:58,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:02:58,811 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 [2024-10-31 22:02:58,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:58,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:58,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:58,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:58,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:02:58,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:02:58,832 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:58,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:58,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:58,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:58,851 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:58,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:02:58,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:02:58,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:58,868 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2024-10-31 22:02:58,869 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-10-31 22:02:58,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:58,887 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2024-10-31 22:02:58,887 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-10-31 22:02:58,962 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:58,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:58,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:58,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:58,983 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:58,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:02:58,986 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 [2024-10-31 22:02:59,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:59,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:59,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:59,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:59,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:02:59,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:02:59,018 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:02:59,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:59,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:59,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:59,038 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:59,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:02:59,041 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 [2024-10-31 22:02:59,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:02:59,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:02:59,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:02:59,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:02:59,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:02:59,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:02:59,076 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:02:59,118 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2024-10-31 22:02:59,119 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-10-31 22:02:59,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:02:59,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:59,121 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:59,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:02:59,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:02:59,145 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-10-31 22:02:59,145 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:02:59,145 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strrchr_~t#1.offset) = -2*ULTIMATE.start_strrchr_~t#1.offset + 36893488147419103227 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_strrchr_~t#1.base)_1 + 18446744073709551615 >= 0] [2024-10-31 22:02:59,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:59,181 INFO L156 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2024-10-31 22:02:59,186 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~t!offset [2024-10-31 22:02:59,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:02:59,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:59,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-10-31 22:02:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:02:59,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:59,371 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2024-10-31 22:02:59,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2024-10-31 22:02:59,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 10. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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 100 states and 122 transitions. Complement of second has 9 states. [2024-10-31 22:02:59,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2024-10-31 22:02:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2024-10-31 22:02:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2024-10-31 22:02:59,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:02:59,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:59,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-31 22:02:59,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:59,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 6 letters. Loop has 8 letters. [2024-10-31 22:02:59,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:02:59,471 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 122 transitions. [2024-10-31 22:02:59,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-10-31 22:02:59,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 90 states and 108 transitions. [2024-10-31 22:02:59,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2024-10-31 22:02:59,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2024-10-31 22:02:59,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 108 transitions. [2024-10-31 22:02:59,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:02:59,476 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 108 transitions. [2024-10-31 22:02:59,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 108 transitions. [2024-10-31 22:02:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2024-10-31 22:02:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.2117647058823529) internal successors, (103), 84 states have internal predecessors, (103), 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) [2024-10-31 22:02:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 103 transitions. [2024-10-31 22:02:59,482 INFO L240 hiAutomatonCegarLoop]: Abstraction has 85 states and 103 transitions. [2024-10-31 22:02:59,482 INFO L425 stractBuchiCegarLoop]: Abstraction has 85 states and 103 transitions. [2024-10-31 22:02:59,482 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:02:59,482 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 103 transitions. [2024-10-31 22:02:59,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 21 [2024-10-31 22:02:59,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:02:59,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:02:59,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1] [2024-10-31 22:02:59,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:02:59,484 INFO L745 eck$LassoCheckResult]: Stem: 765#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 766#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 767#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 768#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 763#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 756#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 757#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 780#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 781#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 818#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 814#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 813#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 811#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 809#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 802#L511-2 [2024-10-31 22:02:59,484 INFO L747 eck$LassoCheckResult]: Loop: 802#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 804#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 799#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 800#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 802#L511-2 [2024-10-31 22:02:59,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:59,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1275711976, now seen corresponding path program 1 times [2024-10-31 22:02:59,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:59,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612935282] [2024-10-31 22:02:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:59,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:59,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:59,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:59,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1543785, now seen corresponding path program 1 times [2024-10-31 22:02:59,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:59,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575449138] [2024-10-31 22:02:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:59,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:59,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:59,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:59,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1384831232, now seen corresponding path program 2 times [2024-10-31 22:02:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:59,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424546894] [2024-10-31 22:02:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:59,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:59,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:59,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:00,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-10-31 22:03:00,381 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:03:00,382 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:03:00,382 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:03:00,382 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:03:00,382 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:03:00,382 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:00,382 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:03:00,382 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:03:00,382 INFO L132 ssoRankerPreferences]: Filename of dumped script: basename-3.i_Iteration7_Lasso [2024-10-31 22:03:00,383 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:03:00,383 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:03:00,386 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,397 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,402 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,404 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,680 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,694 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:00,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:03:01,030 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:03:01,031 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:03:01,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,033 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:03:01,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:01,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,059 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,079 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:03:01,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:01,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,096 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,099 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,119 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:03:01,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:01,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,135 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-10-31 22:03:01,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,147 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:03:01,150 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 [2024-10-31 22:03:01,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,167 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,185 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:03:01,188 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 [2024-10-31 22:03:01,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,203 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,223 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:03:01,237 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 [2024-10-31 22:03:01,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,257 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,276 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:03:01,279 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 [2024-10-31 22:03:01,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,297 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:03:01,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,316 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:03:01,318 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 [2024-10-31 22:03:01,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:03:01,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:03:01,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:03:01,335 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,355 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:03:01,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:03:01,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:01,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:03:01,378 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,400 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:03:01,403 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 [2024-10-31 22:03:01,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:01,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:03:01,426 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,446 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:03:01,450 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 [2024-10-31 22:03:01,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:01,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:03:01,476 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-31 22:03:01,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,496 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:03:01,499 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 [2024-10-31 22:03:01,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:01,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:03:01,520 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,538 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:03:01,540 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 [2024-10-31 22:03:01,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,551 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-10-31 22:03:01,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,557 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2024-10-31 22:03:01,557 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2024-10-31 22:03:01,573 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,594 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-10-31 22:03:01,597 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 [2024-10-31 22:03:01,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:01,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:03:01,617 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:03:01,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,636 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,642 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 [2024-10-31 22:03:01,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-10-31 22:03:01,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:03:01,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:03:01,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:03:01,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:03:01,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:03:01,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:03:01,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:03:01,695 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-10-31 22:03:01,695 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2024-10-31 22:03:01,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:03:01,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,696 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-10-31 22:03:01,697 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:03:01,709 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-31 22:03:01,709 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:03:01,709 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strrchr_~t#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_3) = -1*ULTIMATE.start_strrchr_~t#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_3 Supporting invariants [] [2024-10-31 22:03:01,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2024-10-31 22:03:01,735 INFO L156 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2024-10-31 22:03:01,738 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-31 22:03:01,738 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-31 22:03:01,738 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~t!offset [2024-10-31 22:03:01,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:03:01,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:01,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:01,941 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2024-10-31 22:03:01,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 85 states and 103 transitions. cyclomatic complexity: 24 Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2024-10-31 22:03:02,045 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 85 states and 103 transitions. cyclomatic complexity: 24. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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 130 states and 164 transitions. Complement of second has 7 states. [2024-10-31 22:03:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:03:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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) [2024-10-31 22:03:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2024-10-31 22:03:02,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2024-10-31 22:03:02,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:02,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 18 letters. Loop has 4 letters. [2024-10-31 22:03:02,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:02,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 14 letters. Loop has 8 letters. [2024-10-31 22:03:02,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:03:02,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 164 transitions. [2024-10-31 22:03:02,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-31 22:03:02,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 104 states and 125 transitions. [2024-10-31 22:03:02,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2024-10-31 22:03:02,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-10-31 22:03:02,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 125 transitions. [2024-10-31 22:03:02,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:02,057 INFO L218 hiAutomatonCegarLoop]: Abstraction has 104 states and 125 transitions. [2024-10-31 22:03:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 125 transitions. [2024-10-31 22:03:02,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 73. [2024-10-31 22:03:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 73 states have (on average 1.1917808219178083) internal successors, (87), 72 states have internal predecessors, (87), 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) [2024-10-31 22:03:02,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 87 transitions. [2024-10-31 22:03:02,069 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 87 transitions. [2024-10-31 22:03:02,069 INFO L425 stractBuchiCegarLoop]: Abstraction has 73 states and 87 transitions. [2024-10-31 22:03:02,069 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-10-31 22:03:02,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 87 transitions. [2024-10-31 22:03:02,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-10-31 22:03:02,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:02,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:02,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:02,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:02,071 INFO L745 eck$LassoCheckResult]: Stem: 1088#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1089#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1090#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 1091#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1124#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1077#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1079#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1082#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1086#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1087#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1081#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1141#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1129#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1114#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1115#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1105#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 1103#strrchr_returnLabel#1 [2024-10-31 22:03:02,071 INFO L747 eck$LassoCheckResult]: Loop: 1103#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 1092#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 1093#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 1096#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 1097#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1084#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1085#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1119#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1128#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1127#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1125#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1121#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1123#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1122#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1120#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1107#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1108#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 1103#strrchr_returnLabel#1 [2024-10-31 22:03:02,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1192462433, now seen corresponding path program 1 times [2024-10-31 22:03:02,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:02,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507439504] [2024-10-31 22:03:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:02,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:02,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:02,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:02,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:02,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1276134570, now seen corresponding path program 2 times [2024-10-31 22:03:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:02,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934331642] [2024-10-31 22:03:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:02,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:02,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:02,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:02,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1834372232, now seen corresponding path program 2 times [2024-10-31 22:03:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563678198] [2024-10-31 22:03:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:02,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-10-31 22:03:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:03:03,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:03,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563678198] [2024-10-31 22:03:03,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563678198] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:03,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534383869] [2024-10-31 22:03:03,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:03:03,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:03,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:03,143 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:03,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-10-31 22:03:03,258 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:03:03,258 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:03:03,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-10-31 22:03:03,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:03,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:03:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:03,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:04,060 INFO L349 Elim1Store]: treesize reduction 10, result has 47.4 percent of original size [2024-10-31 22:03:04,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 125 [2024-10-31 22:03:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:03:04,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534383869] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:04,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:04,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 18] total 39 [2024-10-31 22:03:04,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682116168] [2024-10-31 22:03:04,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:05,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-31 22:03:05,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1331, Unknown=0, NotChecked=0, Total=1482 [2024-10-31 22:03:05,205 INFO L87 Difference]: Start difference. First operand 73 states and 87 transitions. cyclomatic complexity: 19 Second operand has 39 states, 39 states have (on average 1.8205128205128205) internal successors, (71), 39 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:07,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:07,004 INFO L93 Difference]: Finished difference Result 170 states and 200 transitions. [2024-10-31 22:03:07,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 200 transitions. [2024-10-31 22:03:07,006 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2024-10-31 22:03:07,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 164 states and 194 transitions. [2024-10-31 22:03:07,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2024-10-31 22:03:07,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2024-10-31 22:03:07,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 194 transitions. [2024-10-31 22:03:07,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:07,009 INFO L218 hiAutomatonCegarLoop]: Abstraction has 164 states and 194 transitions. [2024-10-31 22:03:07,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 194 transitions. [2024-10-31 22:03:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 98. [2024-10-31 22:03:07,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.2346938775510203) internal successors, (121), 97 states have internal predecessors, (121), 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) [2024-10-31 22:03:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-10-31 22:03:07,017 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-10-31 22:03:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-31 22:03:07,018 INFO L425 stractBuchiCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-10-31 22:03:07,018 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-10-31 22:03:07,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 121 transitions. [2024-10-31 22:03:07,019 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 56 [2024-10-31 22:03:07,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:07,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:07,020 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:07,020 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:07,020 INFO L745 eck$LassoCheckResult]: Stem: 1610#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1611#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1612#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 1613#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1653#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1652#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1651#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1650#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1649#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1648#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1645#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1647#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1646#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1630#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1637#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1622#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 1621#strrchr_returnLabel#1 [2024-10-31 22:03:07,021 INFO L747 eck$LassoCheckResult]: Loop: 1621#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 1614#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 1615#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 1616#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 1617#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 1620#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1666#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1663#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1618#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1607#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1608#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1667#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1693#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1668#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1664#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1604#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1605#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1656#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1657#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 1626#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1688#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 1631#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1625#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 1627#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 1689#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 1621#strrchr_returnLabel#1 [2024-10-31 22:03:07,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:07,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1893527011, now seen corresponding path program 2 times [2024-10-31 22:03:07,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:07,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451563032] [2024-10-31 22:03:07,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:07,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:07,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:07,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:07,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:07,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1248060886, now seen corresponding path program 3 times [2024-10-31 22:03:07,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:07,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949080171] [2024-10-31 22:03:07,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:07,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:07,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:07,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:07,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:07,099 INFO L85 PathProgramCache]: Analyzing trace with hash -545890418, now seen corresponding path program 3 times [2024-10-31 22:03:07,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:07,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840965123] [2024-10-31 22:03:07,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:07,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:08,003 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 60 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:08,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:08,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840965123] [2024-10-31 22:03:08,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840965123] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:08,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761523254] [2024-10-31 22:03:08,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:03:08,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:08,005 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:08,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-10-31 22:03:08,139 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-10-31 22:03:08,139 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:03:08,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-10-31 22:03:08,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:08,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:03:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 61 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-31 22:03:08,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:08,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2024-10-31 22:03:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 61 proven. 38 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-31 22:03:08,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761523254] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:08,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:08,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 11] total 26 [2024-10-31 22:03:08,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299686062] [2024-10-31 22:03:08,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:09,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-31 22:03:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=573, Unknown=0, NotChecked=0, Total=650 [2024-10-31 22:03:09,523 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. cyclomatic complexity: 30 Second operand has 26 states, 26 states have (on average 2.8461538461538463) internal successors, (74), 26 states have internal predecessors, (74), 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) [2024-10-31 22:03:09,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:09,953 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2024-10-31 22:03:09,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 139 transitions. [2024-10-31 22:03:09,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2024-10-31 22:03:09,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 80 states and 97 transitions. [2024-10-31 22:03:09,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2024-10-31 22:03:09,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2024-10-31 22:03:09,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 97 transitions. [2024-10-31 22:03:09,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:09,958 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 97 transitions. [2024-10-31 22:03:09,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 97 transitions. [2024-10-31 22:03:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 42. [2024-10-31 22:03:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 41 states have internal predecessors, (52), 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) [2024-10-31 22:03:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2024-10-31 22:03:09,962 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 52 transitions. [2024-10-31 22:03:09,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:03:09,966 INFO L425 stractBuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2024-10-31 22:03:09,966 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-10-31 22:03:09,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 52 transitions. [2024-10-31 22:03:09,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2024-10-31 22:03:09,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:09,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:09,967 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:09,967 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:09,968 INFO L745 eck$LassoCheckResult]: Stem: 2104#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 2106#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 2107#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 2100#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2101#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2135#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2134#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2130#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2096#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2097#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2099#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2102#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2103#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2128#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2125#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2122#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2118#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2119#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2115#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 2114#strrchr_returnLabel#1 [2024-10-31 22:03:09,968 INFO L747 eck$LassoCheckResult]: Loop: 2114#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 2108#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 2109#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 2110#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 2111#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 2133#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2132#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2131#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2112#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2113#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2094#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2095#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2098#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2129#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2127#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2126#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2124#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2120#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2121#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2116#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2117#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 2114#strrchr_returnLabel#1 [2024-10-31 22:03:09,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:09,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1195844343, now seen corresponding path program 3 times [2024-10-31 22:03:09,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:09,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980899805] [2024-10-31 22:03:09,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:09,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:09,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:10,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:10,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:10,010 INFO L85 PathProgramCache]: Analyzing trace with hash 179046334, now seen corresponding path program 4 times [2024-10-31 22:03:10,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:10,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090135656] [2024-10-31 22:03:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:10,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:10,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:10,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:10,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash 456990646, now seen corresponding path program 4 times [2024-10-31 22:03:10,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:10,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351488497] [2024-10-31 22:03:10,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:10,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 72 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:03:10,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:10,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351488497] [2024-10-31 22:03:10,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351488497] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:10,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961450336] [2024-10-31 22:03:10,837 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:03:10,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:10,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:10,841 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:10,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-10-31 22:03:10,973 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:03:10,974 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:03:10,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-10-31 22:03:10,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:11,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:03:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 39 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:11,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:11,933 INFO L349 Elim1Store]: treesize reduction 10, result has 47.4 percent of original size [2024-10-31 22:03:11,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 125 [2024-10-31 22:03:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 8 proven. 103 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:03:12,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961450336] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:12,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:12,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 18] total 39 [2024-10-31 22:03:12,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123736443] [2024-10-31 22:03:12,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:13,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:13,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-31 22:03:13,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1353, Unknown=0, NotChecked=0, Total=1482 [2024-10-31 22:03:13,141 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. cyclomatic complexity: 13 Second operand has 39 states, 39 states have (on average 2.2564102564102564) internal successors, (88), 39 states have internal predecessors, (88), 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) [2024-10-31 22:03:15,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:15,361 INFO L93 Difference]: Finished difference Result 171 states and 203 transitions. [2024-10-31 22:03:15,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 203 transitions. [2024-10-31 22:03:15,363 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2024-10-31 22:03:15,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 203 transitions. [2024-10-31 22:03:15,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 135 [2024-10-31 22:03:15,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 135 [2024-10-31 22:03:15,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 203 transitions. [2024-10-31 22:03:15,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:03:15,366 INFO L218 hiAutomatonCegarLoop]: Abstraction has 171 states and 203 transitions. [2024-10-31 22:03:15,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 203 transitions. [2024-10-31 22:03:15,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 100. [2024-10-31 22:03:15,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 1.22) internal successors, (122), 99 states have internal predecessors, (122), 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) [2024-10-31 22:03:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 122 transitions. [2024-10-31 22:03:15,373 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 122 transitions. [2024-10-31 22:03:15,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-31 22:03:15,379 INFO L425 stractBuchiCegarLoop]: Abstraction has 100 states and 122 transitions. [2024-10-31 22:03:15,379 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-10-31 22:03:15,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 122 transitions. [2024-10-31 22:03:15,380 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2024-10-31 22:03:15,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:03:15,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:03:15,381 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:15,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:15,381 INFO L745 eck$LassoCheckResult]: Stem: 2660#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset;havoc main_#t~nondet7#1;main_~in_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 2662#L531 assume !(main_~in_len~0#1 < 1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;call write~int#0(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);assume { :begin_inline_basename } true;basename_#in~path#1.base, basename_#in~path#1.offset := main_~in~0#1.base, main_~in~0#1.offset;havoc basename_#res#1.base, basename_#res#1.offset;havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset, basename_#t~mem6#1, basename_~path#1.base, basename_~path#1.offset, basename_~c~0#1.base, basename_~c~0#1.offset;basename_~path#1.base, basename_~path#1.offset := basename_#in~path#1.base, basename_#in~path#1.offset;havoc basename_~c~0#1.base, basename_~c~0#1.offset; 2663#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 2696#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2695#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2694#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2693#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2690#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2651#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2652#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2740#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2738#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2684#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2683#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2681#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2682#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2725#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2724#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2672#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 2671#strrchr_returnLabel#1 [2024-10-31 22:03:15,381 INFO L747 eck$LassoCheckResult]: Loop: 2671#strrchr_returnLabel#1 basename_#t~ret5#1.base, basename_#t~ret5#1.offset := strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;havoc strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1;assume { :end_inline_strrchr } true;basename_~c~0#1.base, basename_~c~0#1.offset := basename_#t~ret5#1.base, basename_#t~ret5#1.offset; 2664#L518 assume !(basename_~c~0#1.base == 0 && basename_~c~0#1.offset == 0);havoc basename_#t~ret5#1.base, basename_#t~ret5#1.offset;call basename_#t~mem6#1 := read~int#0(basename_~c~0#1.base, 1 + basename_~c~0#1.offset, 1); 2665#L519 assume 0 == basename_#t~mem6#1;havoc basename_#t~mem6#1; 2666#L520 assume !(basename_~c~0#1.base == basename_~path#1.base && basename_~c~0#1.offset == basename_~path#1.offset);call write~int#0(0, basename_~c~0#1.base, basename_~c~0#1.offset, 1); 2667#L517 assume { :begin_inline_strrchr } true;strrchr_#in~t#1.base, strrchr_#in~t#1.offset, strrchr_#in~c#1 := basename_~path#1.base, basename_~path#1.offset, 47;havoc strrchr_#res#1.base, strrchr_#res#1.offset;havoc strrchr_#t~mem2#1, strrchr_#t~mem3#1, strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset, strrchr_~t#1.base, strrchr_~t#1.offset, strrchr_~c#1, strrchr_~ch~0#1, strrchr_~l~0#1.base, strrchr_~l~0#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_#in~t#1.base, strrchr_#in~t#1.offset;strrchr_~c#1 := strrchr_#in~c#1;havoc strrchr_~ch~0#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := 0, 0;strrchr_~ch~0#1 := (if strrchr_~c#1 % 256 <= 127 then strrchr_~c#1 % 256 else strrchr_~c#1 % 256 - 256); 2717#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2716#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2715#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2714#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2713#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2712#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2711#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2710#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2709#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2708#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2707#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2706#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2705#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2703#L511 assume strrchr_#t~mem2#1 == strrchr_~ch~0#1;havoc strrchr_#t~mem2#1;strrchr_~l~0#1.base, strrchr_~l~0#1.offset := strrchr_~t#1.base, strrchr_~t#1.offset; 2702#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2701#L511-3 assume !(0 == strrchr_#t~mem3#1);havoc strrchr_#t~mem3#1;strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;strrchr_~t#1.base, strrchr_~t#1.offset := strrchr_~t#1.base, 1 + strrchr_~t#1.offset;havoc strrchr_#t~pre4#1.base, strrchr_#t~pre4#1.offset; 2700#L510-1 call strrchr_#t~mem2#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2675#L511 assume !(strrchr_#t~mem2#1 == strrchr_~ch~0#1);havoc strrchr_#t~mem2#1; 2673#L511-2 call strrchr_#t~mem3#1 := read~int#0(strrchr_~t#1.base, strrchr_~t#1.offset, 1); 2674#L511-3 assume 0 == strrchr_#t~mem3#1;havoc strrchr_#t~mem3#1;strrchr_#res#1.base, strrchr_#res#1.offset := strrchr_~l~0#1.base, strrchr_~l~0#1.offset; 2671#strrchr_returnLabel#1 [2024-10-31 22:03:15,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1195844343, now seen corresponding path program 4 times [2024-10-31 22:03:15,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:15,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609425503] [2024-10-31 22:03:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:15,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:15,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:15,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:15,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:15,410 INFO L85 PathProgramCache]: Analyzing trace with hash 31802792, now seen corresponding path program 5 times [2024-10-31 22:03:15,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:15,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313047132] [2024-10-31 22:03:15,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:15,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:15,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:03:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:03:15,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:03:15,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:15,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1279680096, now seen corresponding path program 5 times [2024-10-31 22:03:15,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:15,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033836097] [2024-10-31 22:03:15,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:15,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 57 proven. 84 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:16,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:16,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033836097] [2024-10-31 22:03:16,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033836097] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:16,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636186155] [2024-10-31 22:03:16,104 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-31 22:03:16,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:16,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:16,106 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:16,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114696a7-ca9e-4cb6-8b1e-85456f6a2fc5/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-10-31 22:03:16,241 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-10-31 22:03:16,242 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:03:16,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-10-31 22:03:16,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:16,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:03:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 57 proven. 82 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:03:16,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:16,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2024-10-31 22:03:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 57 proven. 82 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:03:16,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636186155] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:16,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:03:16,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 13] total 25 [2024-10-31 22:03:16,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001212290] [2024-10-31 22:03:16,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton