./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 635d22826d94d730e7ad3ae4f19cd66841ae17da2d3a120d8f593801b41e2197 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:55:42,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:55:42,536 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:55:42,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:55:42,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:55:42,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:55:42,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:55:42,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:55:42,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:55:42,584 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:55:42,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:55:42,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:55:42,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:55:42,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:55:42,586 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:55:42,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:55:42,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:55:42,587 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:55:42,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:55:42,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:55:42,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:55:42,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:55:42,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:55:42,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:55:42,593 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:55:42,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:55:42,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:55:42,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:55:42,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:55:42,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:55:42,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:55:42,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:55:42,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:55:42,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:55:42,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:55:42,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:55:42,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:55:42,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:55:42,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:55:42,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:55:42,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:55:42,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:55:42,601 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635d22826d94d730e7ad3ae4f19cd66841ae17da2d3a120d8f593801b41e2197 [2024-11-22 12:55:42,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:55:42,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:55:42,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:55:42,880 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:55:42,880 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:55:42,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i [2024-11-22 12:55:44,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:55:44,380 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:55:44,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i [2024-11-22 12:55:44,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732e3ad8f/42d9ab72a63341d883853272a66f2788/FLAG083bfb532 [2024-11-22 12:55:44,402 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732e3ad8f/42d9ab72a63341d883853272a66f2788 [2024-11-22 12:55:44,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:55:44,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:55:44,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:55:44,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:55:44,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:55:44,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea77fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44, skipping insertion in model container [2024-11-22 12:55:44,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:55:44,637 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i[916,929] [2024-11-22 12:55:44,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:55:44,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:55:44,696 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i[916,929] [2024-11-22 12:55:44,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:55:44,739 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:55:44,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44 WrapperNode [2024-11-22 12:55:44,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:55:44,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:55:44,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:55:44,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:55:44,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,792 INFO L138 Inliner]: procedures = 29, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 509 [2024-11-22 12:55:44,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:55:44,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:55:44,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:55:44,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:55:44,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,850 INFO L175 MemorySlicer]: Split 120 memory accesses to 17 slices as follows [2, 3, 6, 10, 5, 7, 7, 6, 8, 4, 10, 9, 8, 10, 15, 3, 7]. 13 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-22 12:55:44,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:55:44,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:55:44,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:55:44,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:55:44,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (1/1) ... [2024-11-22 12:55:44,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:55:44,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:55:44,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:55:44,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:55:45,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-22 12:55:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-22 12:55:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 12:55:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 12:55:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 12:55:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 12:55:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 12:55:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-22 12:55:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-22 12:55:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-22 12:55:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-22 12:55:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-22 12:55:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-22 12:55:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-22 12:55:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-22 12:55:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-22 12:55:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-22 12:55:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-22 12:55:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-22 12:55:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-22 12:55:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-22 12:55:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-22 12:55:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-22 12:55:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-22 12:55:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-22 12:55:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-22 12:55:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-22 12:55:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-22 12:55:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:55:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:55:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:55:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:55:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:55:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:55:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 12:55:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 12:55:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 12:55:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 12:55:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 12:55:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 12:55:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 12:55:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-22 12:55:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-22 12:55:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-22 12:55:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-11-22 12:55:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-11-22 12:55:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-11-22 12:55:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-11-22 12:55:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-11-22 12:55:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-11-22 12:55:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-11-22 12:55:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2024-11-22 12:55:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:55:45,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:55:45,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:55:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:55:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:55:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:55:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:55:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:55:45,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 12:55:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 12:55:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 12:55:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 12:55:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 12:55:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 12:55:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 12:55:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 12:55:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 12:55:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 12:55:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 12:55:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:55:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:55:45,267 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:55:45,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:55:45,737 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-11-22 12:55:45,737 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:55:45,754 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:55:45,754 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:55:45,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:45 BoogieIcfgContainer [2024-11-22 12:55:45,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:55:45,756 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:55:45,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:55:45,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:55:45,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:55:44" (1/3) ... [2024-11-22 12:55:45,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc96584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:55:45, skipping insertion in model container [2024-11-22 12:55:45,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:55:44" (2/3) ... [2024-11-22 12:55:45,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc96584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:55:45, skipping insertion in model container [2024-11-22 12:55:45,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:55:45" (3/3) ... [2024-11-22 12:55:45,765 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-40.i [2024-11-22 12:55:45,782 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:55:45,783 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:55:45,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:55:45,850 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c511bd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:55:45,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:55:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 12:55:45,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:55:45,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:45,868 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:45,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:45,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash -894541318, now seen corresponding path program 1 times [2024-11-22 12:55:45,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:45,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106934941] [2024-11-22 12:55:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:45,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-22 12:55:46,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:46,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106934941] [2024-11-22 12:55:46,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106934941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:55:46,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381583986] [2024-11-22 12:55:46,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:46,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:46,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:55:46,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:55:46,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:55:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:46,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:55:46,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:55:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-22 12:55:46,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:55:46,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381583986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:46,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:55:46,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:55:46,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590922740] [2024-11-22 12:55:46,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:46,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:55:46,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:55:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:55:46,550 INFO L87 Difference]: Start difference. First operand has 113 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 92 states have internal predecessors, (129), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:55:46,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:46,586 INFO L93 Difference]: Finished difference Result 219 states and 347 transitions. [2024-11-22 12:55:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:55:46,589 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-22 12:55:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:46,598 INFO L225 Difference]: With dead ends: 219 [2024-11-22 12:55:46,598 INFO L226 Difference]: Without dead ends: 109 [2024-11-22 12:55:46,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:55:46,606 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:46,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:55:46,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-22 12:55:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-22 12:55:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 12:55:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 160 transitions. [2024-11-22 12:55:46,686 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 160 transitions. Word has length 150 [2024-11-22 12:55:46,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:46,687 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 160 transitions. [2024-11-22 12:55:46,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-22 12:55:46,687 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 160 transitions. [2024-11-22 12:55:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:55:46,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:46,691 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:46,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:55:46,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:55:46,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:46,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:46,894 INFO L85 PathProgramCache]: Analyzing trace with hash -29253812, now seen corresponding path program 1 times [2024-11-22 12:55:46,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:46,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523909981] [2024-11-22 12:55:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:46,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-22 12:55:47,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:47,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523909981] [2024-11-22 12:55:47,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523909981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:55:47,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77648518] [2024-11-22 12:55:47,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:47,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:47,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:55:47,270 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:55:47,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 12:55:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:47,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:55:47,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:55:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:55:47,529 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:55:47,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77648518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:47,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:55:47,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 12:55:47,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192957658] [2024-11-22 12:55:47,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:47,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:55:47,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:47,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:55:47,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:55:47,532 INFO L87 Difference]: Start difference. First operand 109 states and 160 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:55:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:47,560 INFO L93 Difference]: Finished difference Result 218 states and 321 transitions. [2024-11-22 12:55:47,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:55:47,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-22 12:55:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:47,562 INFO L225 Difference]: With dead ends: 218 [2024-11-22 12:55:47,562 INFO L226 Difference]: Without dead ends: 112 [2024-11-22 12:55:47,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:55:47,564 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:47,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 460 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:55:47,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-22 12:55:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-22 12:55:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 12:55:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2024-11-22 12:55:47,573 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 150 [2024-11-22 12:55:47,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:47,574 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2024-11-22 12:55:47,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:55:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2024-11-22 12:55:47,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:55:47,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:47,589 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:47,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 12:55:47,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-22 12:55:47,790 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:47,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:47,791 INFO L85 PathProgramCache]: Analyzing trace with hash 650804558, now seen corresponding path program 1 times [2024-11-22 12:55:47,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:47,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417595566] [2024-11-22 12:55:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:47,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-22 12:55:48,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417595566] [2024-11-22 12:55:48,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417595566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:55:48,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387293693] [2024-11-22 12:55:48,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:48,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:48,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:55:48,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:55:48,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 12:55:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:48,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:55:48,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:55:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:55:48,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:55:48,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387293693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:48,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:55:48,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 12:55:48,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582692877] [2024-11-22 12:55:48,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:48,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:55:48,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:48,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:55:48,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:55:48,240 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:55:48,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:48,272 INFO L93 Difference]: Finished difference Result 222 states and 325 transitions. [2024-11-22 12:55:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:55:48,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-22 12:55:48,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:48,274 INFO L225 Difference]: With dead ends: 222 [2024-11-22 12:55:48,274 INFO L226 Difference]: Without dead ends: 114 [2024-11-22 12:55:48,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:55:48,278 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:48,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:55:48,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-22 12:55:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-22 12:55:48,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 12:55:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 164 transitions. [2024-11-22 12:55:48,293 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 164 transitions. Word has length 150 [2024-11-22 12:55:48,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:48,293 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 164 transitions. [2024-11-22 12:55:48,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:55:48,293 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 164 transitions. [2024-11-22 12:55:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:55:48,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:48,298 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:48,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 12:55:48,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:48,500 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:48,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:48,500 INFO L85 PathProgramCache]: Analyzing trace with hash 652651600, now seen corresponding path program 1 times [2024-11-22 12:55:48,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:48,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320898752] [2024-11-22 12:55:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:48,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:48,668 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-22 12:55:48,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:48,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320898752] [2024-11-22 12:55:48,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320898752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:55:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026059017] [2024-11-22 12:55:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:48,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:48,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:55:48,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:55:48,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 12:55:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:48,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 12:55:48,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:55:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:55:48,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:55:48,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026059017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:55:48,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:55:48,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2024-11-22 12:55:48,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322448150] [2024-11-22 12:55:48,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:55:48,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:55:48,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:55:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:55:48,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:55:48,890 INFO L87 Difference]: Start difference. First operand 113 states and 164 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:55:48,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:55:48,911 INFO L93 Difference]: Finished difference Result 225 states and 328 transitions. [2024-11-22 12:55:48,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:55:48,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-22 12:55:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:55:48,915 INFO L225 Difference]: With dead ends: 225 [2024-11-22 12:55:48,915 INFO L226 Difference]: Without dead ends: 115 [2024-11-22 12:55:48,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:55:48,916 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:55:48,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:55:48,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-22 12:55:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-22 12:55:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 12:55:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2024-11-22 12:55:48,922 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 166 transitions. Word has length 150 [2024-11-22 12:55:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:55:48,923 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 166 transitions. [2024-11-22 12:55:48,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:55:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 166 transitions. [2024-11-22 12:55:48,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 12:55:48,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:55:48,924 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:55:48,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 12:55:49,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:49,125 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:55:49,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:55:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash -466754015, now seen corresponding path program 1 times [2024-11-22 12:55:49,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:55:49,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619749876] [2024-11-22 12:55:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:55:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 27 proven. 27 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-22 12:55:53,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:55:53,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619749876] [2024-11-22 12:55:53,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619749876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:55:53,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438145976] [2024-11-22 12:55:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:55:53,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:55:53,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:55:53,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:55:53,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 12:55:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:55:53,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-22 12:55:53,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:55:53,558 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 15 treesize of output 1 [2024-11-22 12:55:53,822 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 15 treesize of output 1 [2024-11-22 12:55:55,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 59 [2024-11-22 12:55:55,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 44 [2024-11-22 12:55:55,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2024-11-22 12:55:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 11 proven. 465 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-22 12:55:55,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 12:56:26,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1192 treesize of output 904 [2024-11-22 12:56:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:26,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438145976] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:26,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 12:56:26,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 17] total 34 [2024-11-22 12:56:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557545713] [2024-11-22 12:56:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:26,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:56:26,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:56:26,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1017, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 12:56:26,835 INFO L87 Difference]: Start difference. First operand 115 states and 166 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:30,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:30,452 INFO L93 Difference]: Finished difference Result 291 states and 418 transitions. [2024-11-22 12:56:30,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:56:30,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-22 12:56:30,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:30,455 INFO L225 Difference]: With dead ends: 291 [2024-11-22 12:56:30,455 INFO L226 Difference]: Without dead ends: 179 [2024-11-22 12:56:30,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=117, Invalid=1143, Unknown=0, NotChecked=0, Total=1260 [2024-11-22 12:56:30,456 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 142 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:30,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 749 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 12:56:30,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-22 12:56:30,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 176. [2024-11-22 12:56:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 150 states have (on average 1.3733333333333333) internal successors, (206), 151 states have internal predecessors, (206), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-22 12:56:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 252 transitions. [2024-11-22 12:56:30,467 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 252 transitions. Word has length 153 [2024-11-22 12:56:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:30,468 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 252 transitions. [2024-11-22 12:56:30,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:30,468 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 252 transitions. [2024-11-22 12:56:30,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 12:56:30,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:30,469 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:30,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 12:56:30,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:30,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:30,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:30,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1487822369, now seen corresponding path program 1 times [2024-11-22 12:56:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854127353] [2024-11-22 12:56:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:31,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:31,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854127353] [2024-11-22 12:56:31,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854127353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:31,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:31,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:56:31,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661862424] [2024-11-22 12:56:31,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:31,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:56:31,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:31,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:56:31,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:56:31,468 INFO L87 Difference]: Start difference. First operand 176 states and 252 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:56:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:31,905 INFO L93 Difference]: Finished difference Result 433 states and 618 transitions. [2024-11-22 12:56:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:56:31,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-11-22 12:56:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:31,908 INFO L225 Difference]: With dead ends: 433 [2024-11-22 12:56:31,908 INFO L226 Difference]: Without dead ends: 260 [2024-11-22 12:56:31,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:56:31,909 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 435 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:31,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 984 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 12:56:31,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-22 12:56:31,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2024-11-22 12:56:31,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 218 states have (on average 1.353211009174312) internal successors, (295), 220 states have internal predecessors, (295), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-22 12:56:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 365 transitions. [2024-11-22 12:56:31,928 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 365 transitions. Word has length 153 [2024-11-22 12:56:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:31,929 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 365 transitions. [2024-11-22 12:56:31,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-22 12:56:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 365 transitions. [2024-11-22 12:56:31,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 12:56:31,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:31,930 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:31,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:56:31,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:31,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:31,931 INFO L85 PathProgramCache]: Analyzing trace with hash -270039051, now seen corresponding path program 1 times [2024-11-22 12:56:31,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:31,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30475449] [2024-11-22 12:56:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:31,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-22 12:56:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:32,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30475449] [2024-11-22 12:56:32,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30475449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:32,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721405632] [2024-11-22 12:56:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:32,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:32,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:32,061 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:56:32,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 12:56:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:32,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:56:32,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:32,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:32,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721405632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:32,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:32,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-22 12:56:32,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345906556] [2024-11-22 12:56:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:32,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:56:32,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:56:32,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:56:32,278 INFO L87 Difference]: Start difference. First operand 257 states and 365 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:32,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:32,310 INFO L93 Difference]: Finished difference Result 520 states and 739 transitions. [2024-11-22 12:56:32,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:56:32,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-22 12:56:32,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:32,312 INFO L225 Difference]: With dead ends: 520 [2024-11-22 12:56:32,312 INFO L226 Difference]: Without dead ends: 266 [2024-11-22 12:56:32,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:56:32,313 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:32,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 613 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-22 12:56:32,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2024-11-22 12:56:32,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 221 states have (on average 1.3484162895927603) internal successors, (298), 223 states have internal predecessors, (298), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-22 12:56:32,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 368 transitions. [2024-11-22 12:56:32,327 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 368 transitions. Word has length 153 [2024-11-22 12:56:32,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:32,328 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 368 transitions. [2024-11-22 12:56:32,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 368 transitions. [2024-11-22 12:56:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 12:56:32,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:32,331 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:32,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 12:56:32,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:32,532 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:32,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash -607302625, now seen corresponding path program 1 times [2024-11-22 12:56:32,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:32,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927308086] [2024-11-22 12:56:32,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:32,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:33,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:33,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927308086] [2024-11-22 12:56:33,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927308086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:33,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:33,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:56:33,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677160305] [2024-11-22 12:56:33,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:33,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:56:33,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:33,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:56:33,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:56:33,279 INFO L87 Difference]: Start difference. First operand 260 states and 368 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-22 12:56:33,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:33,621 INFO L93 Difference]: Finished difference Result 548 states and 773 transitions. [2024-11-22 12:56:33,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 12:56:33,622 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 153 [2024-11-22 12:56:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:33,624 INFO L225 Difference]: With dead ends: 548 [2024-11-22 12:56:33,624 INFO L226 Difference]: Without dead ends: 291 [2024-11-22 12:56:33,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-22 12:56:33,625 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 364 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:33,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1261 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:56:33,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-22 12:56:33,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 288. [2024-11-22 12:56:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 238 states have (on average 1.3235294117647058) internal successors, (315), 241 states have internal predecessors, (315), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-22 12:56:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 405 transitions. [2024-11-22 12:56:33,645 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 405 transitions. Word has length 153 [2024-11-22 12:56:33,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:33,645 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 405 transitions. [2024-11-22 12:56:33,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-22 12:56:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 405 transitions. [2024-11-22 12:56:33,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-22 12:56:33,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:33,647 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:33,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:56:33,647 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:33,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1628370979, now seen corresponding path program 1 times [2024-11-22 12:56:33,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:33,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748696194] [2024-11-22 12:56:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:33,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:38,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748696194] [2024-11-22 12:56:38,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748696194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:38,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:38,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:56:38,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185209304] [2024-11-22 12:56:38,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:38,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:56:38,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:38,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:56:38,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:56:38,289 INFO L87 Difference]: Start difference. First operand 288 states and 405 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:41,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:41,274 INFO L93 Difference]: Finished difference Result 887 states and 1241 transitions. [2024-11-22 12:56:41,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:56:41,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-22 12:56:41,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:41,280 INFO L225 Difference]: With dead ends: 887 [2024-11-22 12:56:41,282 INFO L226 Difference]: Without dead ends: 623 [2024-11-22 12:56:41,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:56:41,284 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 185 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:41,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1129 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 12:56:41,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-22 12:56:41,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 616. [2024-11-22 12:56:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 521 states have (on average 1.3320537428023032) internal successors, (694), 527 states have internal predecessors, (694), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 78 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-22 12:56:41,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 862 transitions. [2024-11-22 12:56:41,324 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 862 transitions. Word has length 153 [2024-11-22 12:56:41,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:41,325 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 862 transitions. [2024-11-22 12:56:41,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 862 transitions. [2024-11-22 12:56:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 12:56:41,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:41,330 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:41,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:56:41,330 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:41,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash 636600898, now seen corresponding path program 1 times [2024-11-22 12:56:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:41,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431850991] [2024-11-22 12:56:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:41,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:41,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:41,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431850991] [2024-11-22 12:56:41,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431850991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:41,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:41,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:56:41,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234571392] [2024-11-22 12:56:41,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:41,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:56:41,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:41,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:56:41,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:56:41,524 INFO L87 Difference]: Start difference. First operand 616 states and 862 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:41,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:41,788 INFO L93 Difference]: Finished difference Result 1387 states and 1936 transitions. [2024-11-22 12:56:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:56:41,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-22 12:56:41,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:41,794 INFO L225 Difference]: With dead ends: 1387 [2024-11-22 12:56:41,794 INFO L226 Difference]: Without dead ends: 799 [2024-11-22 12:56:41,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:56:41,796 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 130 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:41,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 762 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:56:41,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-22 12:56:41,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 705. [2024-11-22 12:56:41,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 575 states have (on average 1.3043478260869565) internal successors, (750), 581 states have internal predecessors, (750), 115 states have call successors, (115), 14 states have call predecessors, (115), 14 states have return successors, (115), 109 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-22 12:56:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 980 transitions. [2024-11-22 12:56:41,848 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 980 transitions. Word has length 154 [2024-11-22 12:56:41,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:41,849 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 980 transitions. [2024-11-22 12:56:41,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:41,849 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 980 transitions. [2024-11-22 12:56:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 12:56:41,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:41,852 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:41,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 12:56:41,852 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:41,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:41,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1930819998, now seen corresponding path program 1 times [2024-11-22 12:56:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:41,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514526756] [2024-11-22 12:56:41,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:41,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:47,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:47,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514526756] [2024-11-22 12:56:47,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514526756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:47,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:47,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:56:47,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884195010] [2024-11-22 12:56:47,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:47,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:56:47,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:47,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:56:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:56:47,341 INFO L87 Difference]: Start difference. First operand 705 states and 980 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:51,027 INFO L93 Difference]: Finished difference Result 1048 states and 1455 transitions. [2024-11-22 12:56:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 12:56:51,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-22 12:56:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:51,032 INFO L225 Difference]: With dead ends: 1048 [2024-11-22 12:56:51,032 INFO L226 Difference]: Without dead ends: 750 [2024-11-22 12:56:51,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:56:51,033 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 71 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:51,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1084 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:56:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-22 12:56:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 747. [2024-11-22 12:56:51,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 612 states have (on average 1.3022875816993464) internal successors, (797), 619 states have internal predecessors, (797), 119 states have call successors, (119), 15 states have call predecessors, (119), 15 states have return successors, (119), 112 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-22 12:56:51,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1035 transitions. [2024-11-22 12:56:51,082 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1035 transitions. Word has length 155 [2024-11-22 12:56:51,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:51,082 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1035 transitions. [2024-11-22 12:56:51,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:51,083 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1035 transitions. [2024-11-22 12:56:51,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 12:56:51,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:51,084 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:51,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:56:51,085 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:51,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:51,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1737050499, now seen corresponding path program 1 times [2024-11-22 12:56:51,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:51,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051410204] [2024-11-22 12:56:51,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:51,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-22 12:56:51,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:51,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051410204] [2024-11-22 12:56:51,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051410204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:56:51,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769277579] [2024-11-22 12:56:51,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:51,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:51,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:51,204 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) [2024-11-22 12:56:51,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 12:56:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:51,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 12:56:51,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:51,449 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:56:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769277579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:51,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:56:51,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2024-11-22 12:56:51,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24775414] [2024-11-22 12:56:51,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:51,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:56:51,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:51,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:56:51,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:56:51,451 INFO L87 Difference]: Start difference. First operand 747 states and 1035 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:51,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:51,514 INFO L93 Difference]: Finished difference Result 1498 states and 2073 transitions. [2024-11-22 12:56:51,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:56:51,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-22 12:56:51,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:51,520 INFO L225 Difference]: With dead ends: 1498 [2024-11-22 12:56:51,520 INFO L226 Difference]: Without dead ends: 779 [2024-11-22 12:56:51,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:56:51,522 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:51,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 761 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:56:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-22 12:56:51,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 755. [2024-11-22 12:56:51,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 620 states have (on average 1.2983870967741935) internal successors, (805), 627 states have internal predecessors, (805), 119 states have call successors, (119), 15 states have call predecessors, (119), 15 states have return successors, (119), 112 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-22 12:56:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1043 transitions. [2024-11-22 12:56:51,567 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1043 transitions. Word has length 155 [2024-11-22 12:56:51,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:51,567 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 1043 transitions. [2024-11-22 12:56:51,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:51,568 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1043 transitions. [2024-11-22 12:56:51,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-22 12:56:51,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:51,569 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:51,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 12:56:51,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:51,770 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:51,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:51,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1002087614, now seen corresponding path program 1 times [2024-11-22 12:56:51,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:51,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916088599] [2024-11-22 12:56:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:51,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 12:56:51,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:56:51,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916088599] [2024-11-22 12:56:51,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916088599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:56:51,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:56:51,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 12:56:51,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038874244] [2024-11-22 12:56:51,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:56:51,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:56:51,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:56:51,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:56:51,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 12:56:51,879 INFO L87 Difference]: Start difference. First operand 755 states and 1043 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:52,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:56:52,084 INFO L93 Difference]: Finished difference Result 1537 states and 2122 transitions. [2024-11-22 12:56:52,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:56:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-22 12:56:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:56:52,091 INFO L225 Difference]: With dead ends: 1537 [2024-11-22 12:56:52,091 INFO L226 Difference]: Without dead ends: 810 [2024-11-22 12:56:52,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:56:52,096 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 138 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 12:56:52,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 684 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 12:56:52,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-22 12:56:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 771. [2024-11-22 12:56:52,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 629 states have (on average 1.287758346581876) internal successors, (810), 636 states have internal predecessors, (810), 125 states have call successors, (125), 16 states have call predecessors, (125), 16 states have return successors, (125), 118 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-22 12:56:52,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1060 transitions. [2024-11-22 12:56:52,231 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1060 transitions. Word has length 155 [2024-11-22 12:56:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:56:52,234 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1060 transitions. [2024-11-22 12:56:52,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-22 12:56:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1060 transitions. [2024-11-22 12:56:52,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-22 12:56:52,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:56:52,235 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:56:52,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:56:52,236 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:56:52,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:56:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1570163810, now seen corresponding path program 1 times [2024-11-22 12:56:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:56:52,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215204104] [2024-11-22 12:56:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:52,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:56:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 12:56:52,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710039381] [2024-11-22 12:56:52,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:56:52,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:56:52,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:56:52,339 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) [2024-11-22 12:56:52,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 12:56:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:56:53,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-22 12:56:53,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:56:53,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 5 [2024-11-22 12:56:54,057 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 15 treesize of output 1 [2024-11-22 12:56:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 11 proven. 497 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-22 12:56:55,752 INFO L311 TraceCheckSpWp]: Computing backward predicates...