./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 32bit --witnessprinter.graph.data.programhash fb960067570884de0638f14e8f74b0912d9ff4ed83f9c3c33e6cd3e420d05661 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-15 00:19:23,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:19:23,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-15 00:19:23,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:19:23,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:19:23,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:19:23,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:19:23,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:19:23,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:19:23,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:19:23,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:19:23,239 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:19:23,239 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:19:23,241 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-15 00:19:23,242 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-15 00:19:23,242 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-15 00:19:23,242 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-15 00:19:23,243 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-15 00:19:23,243 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-15 00:19:23,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:19:23,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-15 00:19:23,247 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 00:19:23,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:19:23,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 00:19:23,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:19:23,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-15 00:19:23,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-15 00:19:23,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-15 00:19:23,249 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:19:23,249 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:19:23,250 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 00:19:23,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:19:23,250 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-15 00:19:23,250 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:19:23,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:19:23,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:19:23,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:19:23,251 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:19:23,252 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-15 00:19:23,253 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb960067570884de0638f14e8f74b0912d9ff4ed83f9c3c33e6cd3e420d05661 [2024-10-15 00:19:23,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:19:23,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:19:23,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:19:23,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:19:23,533 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:19:23,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2024-10-15 00:19:25,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:19:25,276 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:19:25,276 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_assert_loop_dep.i [2024-10-15 00:19:25,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ad1e30d/a073c3e211d64b59b34dce7bf2613025/FLAGb6377e381 [2024-10-15 00:19:25,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ad1e30d/a073c3e211d64b59b34dce7bf2613025 [2024-10-15 00:19:25,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:19:25,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:19:25,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:19:25,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:19:25,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:19:25,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ef70e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25, skipping insertion in model container [2024-10-15 00:19:25,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:19:25,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:19:25,523 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:19:25,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:19:25,551 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:19:25,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25 WrapperNode [2024-10-15 00:19:25,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:19:25,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:19:25,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:19:25,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:19:25,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,582 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-10-15 00:19:25,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:19:25,583 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:19:25,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:19:25,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:19:25,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,609 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-10-15 00:19:25,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:19:25,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:19:25,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:19:25,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:19:25,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (1/1) ... [2024-10-15 00:19:25,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:25,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:25,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:19:25,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-15 00:19:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 00:19:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 00:19:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-15 00:19:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-15 00:19:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-15 00:19:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-15 00:19:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:19:25,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:19:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-15 00:19:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-15 00:19:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-15 00:19:25,857 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:19:25,859 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:19:26,009 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-15 00:19:26,009 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:19:26,027 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:19:26,028 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-15 00:19:26,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:19:26 BoogieIcfgContainer [2024-10-15 00:19:26,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:19:26,029 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-15 00:19:26,029 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-15 00:19:26,033 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-15 00:19:26,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:19:26,035 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 12:19:25" (1/3) ... [2024-10-15 00:19:26,036 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a6bf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:19:26, skipping insertion in model container [2024-10-15 00:19:26,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:19:26,037 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:19:25" (2/3) ... [2024-10-15 00:19:26,037 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58a6bf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 12:19:26, skipping insertion in model container [2024-10-15 00:19:26,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-15 00:19:26,037 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:19:26" (3/3) ... [2024-10-15 00:19:26,039 INFO L332 chiAutomizerObserver]: Analyzing ICFG array_assert_loop_dep.i [2024-10-15 00:19:26,111 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-15 00:19:26,112 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-15 00:19:26,112 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-15 00:19:26,113 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-15 00:19:26,114 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-15 00:19:26,114 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-15 00:19:26,114 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-15 00:19:26,114 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-15 00:19:26,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:26,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-10-15 00:19:26,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:19:26,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:19:26,144 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:19:26,144 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-15 00:19:26,144 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-15 00:19:26,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:26,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-10-15 00:19:26,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:19:26,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:19:26,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-15 00:19:26,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-15 00:19:26,156 INFO L745 eck$LassoCheckResult]: Stem: 15#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem2#1, main_#t~post3#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 13#L18-3true [2024-10-15 00:19:26,157 INFO L747 eck$LassoCheckResult]: Loop: 13#L18-3true assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 12#L18-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 13#L18-3true [2024-10-15 00:19:26,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:26,166 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-15 00:19:26,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:26,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945194918] [2024-10-15 00:19:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:26,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:26,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:26,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:26,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2024-10-15 00:19:26,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:26,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707613068] [2024-10-15 00:19:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:26,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:26,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:26,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:26,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:26,371 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2024-10-15 00:19:26,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:26,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267457474] [2024-10-15 00:19:26,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:26,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:26,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:26,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:26,776 INFO L204 LassoAnalysis]: Preferences: [2024-10-15 00:19:26,777 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-15 00:19:26,777 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-15 00:19:26,777 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-15 00:19:26,777 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-15 00:19:26,777 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:26,777 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-15 00:19:26,778 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-15 00:19:26,778 INFO L132 ssoRankerPreferences]: Filename of dumped script: array_assert_loop_dep.i_Iteration1_Lasso [2024-10-15 00:19:26,778 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-15 00:19:26,778 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-15 00:19:26,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:19:26,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:19:27,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:19:27,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:19:27,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:19:27,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-15 00:19:27,299 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-15 00:19:27,304 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-15 00:19:27,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:27,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:27,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:19:27,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-15 00:19:27,311 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 [2024-10-15 00:19:27,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:19:27,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:19:27,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:19:27,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:19:27,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:19:27,334 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:19:27,344 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:19:27,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-15 00:19:27,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:27,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:27,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:19:27,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-15 00:19:27,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:19:27,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:19:27,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:19:27,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:19:27,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:19:27,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:19:27,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:19:27,390 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:19:27,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-15 00:19:27,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:27,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:27,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:19:27,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-15 00:19:27,408 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 [2024-10-15 00:19:27,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:19:27,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:19:27,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:19:27,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:19:27,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:19:27,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:19:27,428 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:19:27,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-15 00:19:27,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:27,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:27,446 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:19:27,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-15 00:19:27,450 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 [2024-10-15 00:19:27,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:19:27,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:19:27,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:19:27,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:19:27,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:19:27,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:19:27,478 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-15 00:19:27,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-10-15 00:19:27,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:27,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:19:27,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-15 00:19:27,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-15 00:19:27,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-15 00:19:27,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-15 00:19:27,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-15 00:19:27,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-15 00:19:27,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-15 00:19:27,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-15 00:19:27,530 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-15 00:19:27,572 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2024-10-15 00:19:27,572 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2024-10-15 00:19:27,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-15 00:19:27,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:27,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-15 00:19:27,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-15 00:19:27,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-15 00:19:27,603 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2024-10-15 00:19:27,603 INFO L474 LassoAnalysis]: Proved termination. [2024-10-15 00:19:27,604 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1) = -8*ULTIMATE.start_main_~i~0#1 + 199999*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 Supporting invariants [] [2024-10-15 00:19:27,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-15 00:19:27,648 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2024-10-15 00:19:27,658 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-10-15 00:19:27,659 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-10-15 00:19:27,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:27,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-15 00:19:27,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:19:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:27,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-15 00:19:27,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:19:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:19:27,798 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-15 00:19:27,800 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-15 00:19:27,871 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 45 transitions. Complement of second has 6 states. [2024-10-15 00:19:27,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-15 00:19:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-15 00:19:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-15 00:19:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2024-10-15 00:19:27,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2024-10-15 00:19:27,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:19:27,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2024-10-15 00:19:27,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:19:27,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2024-10-15 00:19:27,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-15 00:19:27,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 45 transitions. [2024-10-15 00:19:27,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-15 00:19:27,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 14 states and 19 transitions. [2024-10-15 00:19:27,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-15 00:19:27,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-15 00:19:27,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2024-10-15 00:19:27,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:19:27,896 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-10-15 00:19:27,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2024-10-15 00:19:27,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-15 00:19:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:27,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2024-10-15 00:19:27,928 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-10-15 00:19:27,928 INFO L425 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-10-15 00:19:27,928 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-15 00:19:27,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2024-10-15 00:19:27,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-10-15 00:19:27,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:19:27,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:19:27,929 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-15 00:19:27,929 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-15 00:19:27,930 INFO L745 eck$LassoCheckResult]: Stem: 114#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 106#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem2#1, main_#t~post3#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 107#L18-3 assume !(main_~i~0#1 < 100000); 113#L18-4 main_~i~0#1 := 0; 105#L22-3 [2024-10-15 00:19:27,930 INFO L747 eck$LassoCheckResult]: Loop: 105#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 110#L13 assume !(0 == __VERIFIER_assert_~cond#1); 102#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 103#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 104#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 105#L22-3 [2024-10-15 00:19:27,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2024-10-15 00:19:27,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:27,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670243262] [2024-10-15 00:19:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:27,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:19:28,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:19:28,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670243262] [2024-10-15 00:19:28,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670243262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:19:28,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:19:28,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-15 00:19:28,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654791932] [2024-10-15 00:19:28,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:19:28,033 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:19:28,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:28,034 INFO L85 PathProgramCache]: Analyzing trace with hash 51965533, now seen corresponding path program 1 times [2024-10-15 00:19:28,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:28,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5733308] [2024-10-15 00:19:28,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:28,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:28,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:28,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:28,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:19:28,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-15 00:19:28,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-15 00:19:28,189 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-15 00:19:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:19:28,217 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2024-10-15 00:19:28,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 23 transitions. [2024-10-15 00:19:28,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-15 00:19:28,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 19 transitions. [2024-10-15 00:19:28,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-15 00:19:28,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-15 00:19:28,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2024-10-15 00:19:28,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:19:28,219 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-10-15 00:19:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2024-10-15 00:19:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2024-10-15 00:19:28,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:28,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-10-15 00:19:28,225 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-10-15 00:19:28,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-15 00:19:28,226 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-10-15 00:19:28,226 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-15 00:19:28,226 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2024-10-15 00:19:28,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-15 00:19:28,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:19:28,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:19:28,229 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:19:28,229 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-15 00:19:28,229 INFO L745 eck$LassoCheckResult]: Stem: 152#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 153#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem2#1, main_#t~post3#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 146#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 144#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 145#L18-3 assume !(main_~i~0#1 < 100000); 147#L18-4 main_~i~0#1 := 0; 148#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 156#L13 assume !(0 == __VERIFIER_assert_~cond#1); 155#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 149#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 150#L22-2 [2024-10-15 00:19:28,229 INFO L747 eck$LassoCheckResult]: Loop: 150#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 154#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 142#L13 assume !(0 == __VERIFIER_assert_~cond#1); 143#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 151#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 150#L22-2 [2024-10-15 00:19:28,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1436013086, now seen corresponding path program 1 times [2024-10-15 00:19:28,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:28,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306808748] [2024-10-15 00:19:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:28,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:28,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:19:28,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:19:28,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306808748] [2024-10-15 00:19:28,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306808748] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:19:28,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004179082] [2024-10-15 00:19:28,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:28,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:19:28,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:28,309 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:19:28,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-15 00:19:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:28,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-15 00:19:28,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:19:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:19:28,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:19:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:19:28,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004179082] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:19:28,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:19:28,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-15 00:19:28,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106394964] [2024-10-15 00:19:28,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:19:28,400 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:19:28,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:28,400 INFO L85 PathProgramCache]: Analyzing trace with hash 72787423, now seen corresponding path program 2 times [2024-10-15 00:19:28,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:28,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923427845] [2024-10-15 00:19:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:28,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:28,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:28,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:19:28,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-15 00:19:28,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-15 00:19:28,541 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:19:28,616 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2024-10-15 00:19:28,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 36 transitions. [2024-10-15 00:19:28,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-10-15 00:19:28,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 36 transitions. [2024-10-15 00:19:28,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-10-15 00:19:28,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-10-15 00:19:28,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 36 transitions. [2024-10-15 00:19:28,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:19:28,622 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 36 transitions. [2024-10-15 00:19:28,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 36 transitions. [2024-10-15 00:19:28,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2024-10-15 00:19:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-10-15 00:19:28,626 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-15 00:19:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-15 00:19:28,628 INFO L425 stractBuchiCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-10-15 00:19:28,628 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-15 00:19:28,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 28 transitions. [2024-10-15 00:19:28,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-15 00:19:28,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:19:28,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:19:28,632 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-15 00:19:28,632 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-15 00:19:28,632 INFO L745 eck$LassoCheckResult]: Stem: 265#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 266#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem2#1, main_#t~post3#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 258#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 259#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 260#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 256#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 257#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 272#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 271#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 270#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 269#L18-3 assume !(main_~i~0#1 < 100000); 261#L18-4 main_~i~0#1 := 0; 262#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 275#L13 assume !(0 == __VERIFIER_assert_~cond#1); 273#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 274#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 276#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 277#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 279#L13 assume !(0 == __VERIFIER_assert_~cond#1); 278#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 263#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 264#L22-2 [2024-10-15 00:19:28,632 INFO L747 eck$LassoCheckResult]: Loop: 264#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 268#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 254#L13 assume !(0 == __VERIFIER_assert_~cond#1); 255#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 267#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 264#L22-2 [2024-10-15 00:19:28,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -491148388, now seen corresponding path program 1 times [2024-10-15 00:19:28,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:28,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765524325] [2024-10-15 00:19:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-15 00:19:28,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:19:28,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765524325] [2024-10-15 00:19:28,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765524325] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:19:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372471968] [2024-10-15 00:19:28,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:28,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:19:28,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:28,817 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:19:28,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-15 00:19:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:28,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-15 00:19:28,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:19:28,911 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-15 00:19:28,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:19:28,995 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-15 00:19:28,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372471968] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:19:28,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:19:28,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-15 00:19:28,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606204006] [2024-10-15 00:19:28,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:19:28,996 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:19:28,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:28,996 INFO L85 PathProgramCache]: Analyzing trace with hash 72787423, now seen corresponding path program 3 times [2024-10-15 00:19:28,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:28,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207050213] [2024-10-15 00:19:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:28,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:29,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:29,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:29,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:19:29,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-15 00:19:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-15 00:19:29,132 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. cyclomatic complexity: 4 Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:29,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:19:29,283 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2024-10-15 00:19:29,283 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 81 transitions. [2024-10-15 00:19:29,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2024-10-15 00:19:29,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 75 states and 81 transitions. [2024-10-15 00:19:29,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 55 [2024-10-15 00:19:29,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2024-10-15 00:19:29,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 81 transitions. [2024-10-15 00:19:29,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:19:29,291 INFO L218 hiAutomatonCegarLoop]: Abstraction has 75 states and 81 transitions. [2024-10-15 00:19:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 81 transitions. [2024-10-15 00:19:29,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 53. [2024-10-15 00:19:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 52 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:29,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2024-10-15 00:19:29,297 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 55 transitions. [2024-10-15 00:19:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-15 00:19:29,301 INFO L425 stractBuchiCegarLoop]: Abstraction has 53 states and 55 transitions. [2024-10-15 00:19:29,302 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-15 00:19:29,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 55 transitions. [2024-10-15 00:19:29,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-15 00:19:29,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:19:29,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:19:29,307 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2024-10-15 00:19:29,307 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-15 00:19:29,308 INFO L745 eck$LassoCheckResult]: Stem: 502#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 503#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem2#1, main_#t~post3#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 495#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 496#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 497#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 493#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 494#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 521#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 520#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 519#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 518#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 517#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 516#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 515#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 514#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 513#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 512#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 511#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 510#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 509#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 508#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 507#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 506#L18-3 assume !(main_~i~0#1 < 100000); 498#L18-4 main_~i~0#1 := 0; 499#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 525#L13 assume !(0 == __VERIFIER_assert_~cond#1); 543#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 542#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 526#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 527#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 524#L13 assume !(0 == __VERIFIER_assert_~cond#1); 522#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 523#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 528#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 541#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 540#L13 assume !(0 == __VERIFIER_assert_~cond#1); 539#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 538#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 537#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 536#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 535#L13 assume !(0 == __VERIFIER_assert_~cond#1); 534#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 533#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 532#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 531#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 530#L13 assume !(0 == __VERIFIER_assert_~cond#1); 529#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 500#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 501#L22-2 [2024-10-15 00:19:29,308 INFO L747 eck$LassoCheckResult]: Loop: 501#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 505#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 491#L13 assume !(0 == __VERIFIER_assert_~cond#1); 492#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 504#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 501#L22-2 [2024-10-15 00:19:29,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash -884242768, now seen corresponding path program 2 times [2024-10-15 00:19:29,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:29,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391741266] [2024-10-15 00:19:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:29,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-15 00:19:29,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:19:29,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391741266] [2024-10-15 00:19:29,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391741266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:19:29,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263752746] [2024-10-15 00:19:29,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 00:19:29,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:19:29,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:29,677 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:19:29,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-15 00:19:29,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 00:19:29,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 00:19:29,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-15 00:19:29,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:19:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-15 00:19:29,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 00:19:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-15 00:19:30,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263752746] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 00:19:30,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 00:19:30,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-10-15 00:19:30,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537307565] [2024-10-15 00:19:30,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 00:19:30,062 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:19:30,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash 72787423, now seen corresponding path program 4 times [2024-10-15 00:19:30,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:30,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002224614] [2024-10-15 00:19:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:30,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:30,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:30,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:30,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:19:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-15 00:19:30,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-10-15 00:19:30,185 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. cyclomatic complexity: 4 Second operand has 25 states, 25 states have (on average 2.16) internal successors, (54), 25 states have internal predecessors, (54), 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) [2024-10-15 00:19:30,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:19:30,492 INFO L93 Difference]: Finished difference Result 159 states and 171 transitions. [2024-10-15 00:19:30,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 171 transitions. [2024-10-15 00:19:30,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2024-10-15 00:19:30,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 171 transitions. [2024-10-15 00:19:30,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 115 [2024-10-15 00:19:30,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2024-10-15 00:19:30,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 171 transitions. [2024-10-15 00:19:30,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:19:30,503 INFO L218 hiAutomatonCegarLoop]: Abstraction has 159 states and 171 transitions. [2024-10-15 00:19:30,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 171 transitions. [2024-10-15 00:19:30,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 107. [2024-10-15 00:19:30,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.0186915887850467) internal successors, (109), 106 states have internal predecessors, (109), 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) [2024-10-15 00:19:30,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 109 transitions. [2024-10-15 00:19:30,514 INFO L240 hiAutomatonCegarLoop]: Abstraction has 107 states and 109 transitions. [2024-10-15 00:19:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-15 00:19:30,516 INFO L425 stractBuchiCegarLoop]: Abstraction has 107 states and 109 transitions. [2024-10-15 00:19:30,516 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-15 00:19:30,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 109 transitions. [2024-10-15 00:19:30,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-15 00:19:30,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-15 00:19:30,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-15 00:19:30,520 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [22, 22, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2024-10-15 00:19:30,521 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-15 00:19:30,521 INFO L745 eck$LassoCheckResult]: Stem: 1024#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2); 1025#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_#t~mem2#1, main_#t~post3#1, main_~i~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_~i~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(400000);main_~i~0#1 := 0; 1017#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1018#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1019#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1015#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1016#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1067#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1066#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1065#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1064#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1063#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1062#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1061#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1060#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1059#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1058#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1057#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1056#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1055#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1054#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1053#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1052#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1051#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1050#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1049#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1048#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1047#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1046#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1045#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1044#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1043#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1042#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1041#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1040#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1039#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1038#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1037#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1036#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1035#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1034#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1033#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1032#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1031#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1030#L18-3 assume !!(main_~i~0#1 < 100000);call write~int#1(10, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4); 1029#L18-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 1028#L18-3 assume !(main_~i~0#1 < 100000); 1020#L18-4 main_~i~0#1 := 0; 1021#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1071#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1119#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1118#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1072#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1073#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1070#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1068#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1069#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1074#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1117#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1116#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1115#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1114#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1113#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1112#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1111#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1110#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1109#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1108#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1107#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1106#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1105#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1104#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1103#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1102#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1101#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1100#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1099#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1098#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1097#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1096#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1095#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1094#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1093#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1092#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1091#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1090#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1089#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1088#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1087#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1086#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1085#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1084#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1083#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1082#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1081#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1080#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1079#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1078#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1077#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1076#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1075#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1022#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1023#L22-2 [2024-10-15 00:19:30,521 INFO L747 eck$LassoCheckResult]: Loop: 1023#L22-2 main_#t~post3#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 1027#L22-3 assume !!(main_~i~0#1 < 100000);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 10 == main_#t~mem2#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 1013#L13 assume !(0 == __VERIFIER_assert_~cond#1); 1014#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1; 1026#L25 assume 15000 != 1 + main_~i~0#1;call write~int#1(20, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * (1 + main_~i~0#1), 4); 1023#L22-2 [2024-10-15 00:19:30,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:30,522 INFO L85 PathProgramCache]: Analyzing trace with hash -553358392, now seen corresponding path program 3 times [2024-10-15 00:19:30,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:30,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940898282] [2024-10-15 00:19:30,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:30,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:19:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-15 00:19:31,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:19:31,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940898282] [2024-10-15 00:19:31,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940898282] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 00:19:31,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846195438] [2024-10-15 00:19:31,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 00:19:31,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 00:19:31,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:19:31,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 00:19:31,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-15 00:19:31,538 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-15 00:19:31,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 00:19:31,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-15 00:19:31,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 00:19:31,580 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 16 treesize of output 12 [2024-10-15 00:19:31,644 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2024-10-15 00:19:31,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-15 00:19:31,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846195438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:19:31,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-15 00:19:31,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 28 [2024-10-15 00:19:31,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117135366] [2024-10-15 00:19:31,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:19:31,646 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-15 00:19:31,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:19:31,646 INFO L85 PathProgramCache]: Analyzing trace with hash 72787423, now seen corresponding path program 5 times [2024-10-15 00:19:31,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:19:31,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224541152] [2024-10-15 00:19:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:19:31,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:19:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:31,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-15 00:19:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-15 00:19:31,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-15 00:19:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:19:31,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-15 00:19:31,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=450, Unknown=0, NotChecked=0, Total=756 [2024-10-15 00:19:31,756 INFO L87 Difference]: Start difference. First operand 107 states and 109 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:19:31,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 00:19:31,798 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2024-10-15 00:19:31,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 55 transitions. [2024-10-15 00:19:31,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:19:31,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2024-10-15 00:19:31,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-15 00:19:31,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-15 00:19:31,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-15 00:19:31,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-15 00:19:31,800 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:19:31,800 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:19:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-15 00:19:31,800 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 00:19:31,800 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-15 00:19:31,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-15 00:19:31,801 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-15 00:19:31,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-15 00:19:31,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 12:19:31 BoogieIcfgContainer [2024-10-15 00:19:31,815 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-15 00:19:31,815 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:19:31,816 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:19:31,816 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:19:31,817 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:19:26" (3/4) ... [2024-10-15 00:19:31,819 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-15 00:19:31,820 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:19:31,822 INFO L158 Benchmark]: Toolchain (without parser) took 6519.27ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 106.2MB in the beginning and 77.6MB in the end (delta: 28.6MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2024-10-15 00:19:31,825 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 133.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:19:31,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.47ms. Allocated memory is still 176.2MB. Free memory was 106.1MB in the beginning and 94.9MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 00:19:31,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.48ms. Allocated memory is still 176.2MB. Free memory was 94.9MB in the beginning and 93.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:19:31,826 INFO L158 Benchmark]: Boogie Preprocessor took 42.08ms. Allocated memory is still 176.2MB. Free memory was 93.4MB in the beginning and 91.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:19:31,826 INFO L158 Benchmark]: RCFGBuilder took 402.10ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 139.1MB in the end (delta: -47.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2024-10-15 00:19:31,826 INFO L158 Benchmark]: BuchiAutomizer took 5785.42ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 138.4MB in the beginning and 77.6MB in the end (delta: 60.8MB). Peak memory consumption was 113.5MB. Max. memory is 16.1GB. [2024-10-15 00:19:31,826 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 226.5MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:19:31,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 133.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.47ms. Allocated memory is still 176.2MB. Free memory was 106.1MB in the beginning and 94.9MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.48ms. Allocated memory is still 176.2MB. Free memory was 94.9MB in the beginning and 93.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.08ms. Allocated memory is still 176.2MB. Free memory was 93.4MB in the beginning and 91.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.10ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 139.1MB in the end (delta: -47.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 5785.42ms. Allocated memory was 176.2MB in the beginning and 226.5MB in the end (delta: 50.3MB). Free memory was 138.4MB in the beginning and 77.6MB in the end (delta: 60.8MB). Peak memory consumption was 113.5MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 226.5MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (5 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 25 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 7 iterations. TraceHistogramMax:22. Analysis of lassos took 4.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 83 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 553 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 552 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 203 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 250 IncrementalHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 203 mSolverCounterUnsat, 39 mSDtfsCounter, 250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU5 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital117 mio100 ax100 hnf100 lsp88 ukn75 mio100 lsp43 div100 bol100 ite100 ukn100 eq152 hnf92 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-15 00:19:31,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-15 00:19:32,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-15 00:19:32,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-15 00:19:32,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-15 00:19:32,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE