./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.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-a_file-84.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 f0a95c837253461e666811310d33281cfc4592599bb0e38960c7585c8a470237 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:38:42,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:38:42,574 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:38:42,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:38:42,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:38:42,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:38:42,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:38:42,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:38:42,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:38:42,607 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:38:42,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:38:42,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:38:42,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:38:42,608 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:38:42,610 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:38:42,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:38:42,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:38:42,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:38:42,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:38:42,611 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:38:42,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:38:42,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:38:42,612 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:38:42,612 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:38:42,612 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:38:42,612 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:38:42,612 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:38:42,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:38:42,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:38:42,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:38:42,613 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:38:42,613 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:38:42,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:38:42,614 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:38:42,614 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:38:42,614 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:38:42,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:38:42,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:38:42,615 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:38:42,615 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:38:42,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:38:42,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:38:42,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0a95c837253461e666811310d33281cfc4592599bb0e38960c7585c8a470237 [2024-11-22 12:38:42,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:38:42,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:38:42,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:38:42,857 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:38:42,858 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:38:42,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i [2024-11-22 12:38:44,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:38:44,210 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:38:44,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i [2024-11-22 12:38:44,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865c7d55c/e458058752d042e9b77a8cd76fe200b4/FLAG72c56db42 [2024-11-22 12:38:44,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/865c7d55c/e458058752d042e9b77a8cd76fe200b4 [2024-11-22 12:38:44,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:38:44,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:38:44,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:38:44,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:38:44,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:38:44,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c1b515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44, skipping insertion in model container [2024-11-22 12:38:44,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:38:44,396 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-a_file-84.i[916,929] [2024-11-22 12:38:44,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:38:44,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:38:44,462 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-a_file-84.i[916,929] [2024-11-22 12:38:44,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:38:44,500 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:38:44,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44 WrapperNode [2024-11-22 12:38:44,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:38:44,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:38:44,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:38:44,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:38:44,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,560 INFO L138 Inliner]: procedures = 29, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 430 [2024-11-22 12:38:44,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:38:44,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:38:44,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:38:44,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:38:44,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,593 INFO L175 MemorySlicer]: Split 122 memory accesses to 6 slices as follows [2, 6, 11, 19, 72, 12]. 59 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 2, 3, 7, 2]. The 17 writes are split as follows [0, 1, 2, 4, 8, 2]. [2024-11-22 12:38:44,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:38:44,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:38:44,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:38:44,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:38:44,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (1/1) ... [2024-11-22 12:38:44,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:38:44,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:38:44,677 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 12:38:44,680 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 12:38:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:38:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-22 12:38:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-22 12:38:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-22 12:38:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-22 12:38:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-22 12:38:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-22 12:38:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:38:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:38:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-22 12:38:44,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-22 12:38:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-22 12:38:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:38:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:38:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:38:44,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:38:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:38:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:38:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-22 12:38:44,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-22 12:38:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-22 12:38:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-22 12:38:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-22 12:38:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-22 12:38:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:38:44,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:38:44,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:38:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:38:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:38:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:38:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:38:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:38:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:38:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:38:44,847 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:38:44,849 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:38:45,221 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-22 12:38:45,221 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:38:45,235 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:38:45,236 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:38:45,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:38:45 BoogieIcfgContainer [2024-11-22 12:38:45,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:38:45,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:38:45,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:38:45,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:38:45,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:38:44" (1/3) ... [2024-11-22 12:38:45,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb5fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:38:45, skipping insertion in model container [2024-11-22 12:38:45,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:38:44" (2/3) ... [2024-11-22 12:38:45,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb5fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:38:45, skipping insertion in model container [2024-11-22 12:38:45,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:38:45" (3/3) ... [2024-11-22 12:38:45,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-84.i [2024-11-22 12:38:45,255 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:38:45,255 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:38:45,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:38:45,310 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;@12d122f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:38:45,310 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:38:45,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:38:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:45,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:45,325 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:45,325 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:45,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:45,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1023549121, now seen corresponding path program 1 times [2024-11-22 12:38:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:45,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138184288] [2024-11-22 12:38:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-22 12:38:45,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:45,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138184288] [2024-11-22 12:38:45,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138184288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:38:45,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731702382] [2024-11-22 12:38:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:45,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:38:45,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:38:45,599 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 12:38:45,600 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 12:38:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:45,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:38:45,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:38:45,824 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-22 12:38:45,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:38:45,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731702382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:45,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:38:45,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:38:45,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36387038] [2024-11-22 12:38:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:45,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:38:45,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:45,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:38:45,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:38:45,847 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:45,872 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-11-22 12:38:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:38:45,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-22 12:38:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:45,880 INFO L225 Difference]: With dead ends: 199 [2024-11-22 12:38:45,881 INFO L226 Difference]: Without dead ends: 99 [2024-11-22 12:38:45,884 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 12:38:45,887 INFO L432 NwaCegarLoop]: 141 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, 141 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 12:38:45,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:38:45,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-22 12:38:45,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-22 12:38:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:38:45,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-11-22 12:38:45,950 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-11-22 12:38:45,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:45,951 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-11-22 12:38:45,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-11-22 12:38:45,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:45,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:45,958 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:45,990 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 12:38:46,158 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 12:38:46,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:46,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1345191521, now seen corresponding path program 1 times [2024-11-22 12:38:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:46,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662856022] [2024-11-22 12:38:46,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:46,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:46,421 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:46,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:46,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662856022] [2024-11-22 12:38:46,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662856022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:46,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:46,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:38:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747846324] [2024-11-22 12:38:46,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:46,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:38:46,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:46,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:38:46,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:38:46,426 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:46,461 INFO L93 Difference]: Finished difference Result 197 states and 282 transitions. [2024-11-22 12:38:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:38:46,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-22 12:38:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:46,463 INFO L225 Difference]: With dead ends: 197 [2024-11-22 12:38:46,463 INFO L226 Difference]: Without dead ends: 101 [2024-11-22 12:38:46,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:38:46,464 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 406 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 12:38:46,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 406 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:38:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-22 12:38:46,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-22 12:38:46,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:38:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2024-11-22 12:38:46,473 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 150 [2024-11-22 12:38:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:46,473 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2024-11-22 12:38:46,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:46,474 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2024-11-22 12:38:46,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:46,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:46,476 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:46,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:38:46,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:46,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:46,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1708658019, now seen corresponding path program 1 times [2024-11-22 12:38:46,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:46,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369634936] [2024-11-22 12:38:46,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:46,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:46,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:46,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369634936] [2024-11-22 12:38:46,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369634936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:46,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:46,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:38:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954850827] [2024-11-22 12:38:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:46,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:38:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:46,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:38:46,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:38:46,687 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:38:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:46,721 INFO L93 Difference]: Finished difference Result 202 states and 287 transitions. [2024-11-22 12:38:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:38:46,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-22 12:38:46,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:46,725 INFO L225 Difference]: With dead ends: 202 [2024-11-22 12:38:46,725 INFO L226 Difference]: Without dead ends: 104 [2024-11-22 12:38:46,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:38:46,726 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:46,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 405 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:38:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-22 12:38:46,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-22 12:38:46,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 81 states have (on average 1.2962962962962963) internal successors, (105), 81 states have internal predecessors, (105), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-22 12:38:46,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 145 transitions. [2024-11-22 12:38:46,739 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 145 transitions. Word has length 150 [2024-11-22 12:38:46,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:46,739 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 145 transitions. [2024-11-22 12:38:46,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:38:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 145 transitions. [2024-11-22 12:38:46,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 12:38:46,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:46,743 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:46,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:38:46,743 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:46,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1706810977, now seen corresponding path program 1 times [2024-11-22 12:38:46,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:46,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692843479] [2024-11-22 12:38:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:46,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:47,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:47,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692843479] [2024-11-22 12:38:47,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692843479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:47,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:47,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:38:47,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596500007] [2024-11-22 12:38:47,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:47,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:38:47,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:47,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:38:47,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:38:47,014 INFO L87 Difference]: Start difference. First operand 103 states and 145 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:47,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:47,229 INFO L93 Difference]: Finished difference Result 330 states and 465 transitions. [2024-11-22 12:38:47,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:38:47,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-22 12:38:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:47,232 INFO L225 Difference]: With dead ends: 330 [2024-11-22 12:38:47,235 INFO L226 Difference]: Without dead ends: 230 [2024-11-22 12:38:47,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:38:47,236 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 293 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:47,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 535 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:38:47,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-22 12:38:47,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 203. [2024-11-22 12:38:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 160 states have (on average 1.2875) internal successors, (206), 160 states have internal predecessors, (206), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 12:38:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 286 transitions. [2024-11-22 12:38:47,263 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 286 transitions. Word has length 150 [2024-11-22 12:38:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:47,264 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 286 transitions. [2024-11-22 12:38:47,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 286 transitions. [2024-11-22 12:38:47,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 12:38:47,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:47,270 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:47,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:38:47,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:47,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:47,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1924195517, now seen corresponding path program 1 times [2024-11-22 12:38:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:47,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528080168] [2024-11-22 12:38:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:47,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:49,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:49,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528080168] [2024-11-22 12:38:49,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528080168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:49,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:49,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 12:38:49,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063314756] [2024-11-22 12:38:49,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:49,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 12:38:49,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:49,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 12:38:49,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-22 12:38:49,322 INFO L87 Difference]: Start difference. First operand 203 states and 286 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:50,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:50,500 INFO L93 Difference]: Finished difference Result 783 states and 1089 transitions. [2024-11-22 12:38:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 12:38:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-11-22 12:38:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:50,506 INFO L225 Difference]: With dead ends: 783 [2024-11-22 12:38:50,507 INFO L226 Difference]: Without dead ends: 583 [2024-11-22 12:38:50,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2024-11-22 12:38:50,511 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 249 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:50,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 2187 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 12:38:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-22 12:38:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 353. [2024-11-22 12:38:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 294 states have (on average 1.3129251700680271) internal successors, (386), 296 states have internal predecessors, (386), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 12:38:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 494 transitions. [2024-11-22 12:38:50,548 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 494 transitions. Word has length 158 [2024-11-22 12:38:50,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:50,550 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 494 transitions. [2024-11-22 12:38:50,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 494 transitions. [2024-11-22 12:38:50,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 12:38:50,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:50,552 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:50,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:38:50,552 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:50,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1948069953, now seen corresponding path program 1 times [2024-11-22 12:38:50,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:50,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230720353] [2024-11-22 12:38:50,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:50,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:51,847 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:51,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:51,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230720353] [2024-11-22 12:38:51,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230720353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:51,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:51,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 12:38:51,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566339395] [2024-11-22 12:38:51,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:51,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 12:38:51,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:51,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 12:38:51,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:38:51,850 INFO L87 Difference]: Start difference. First operand 353 states and 494 transitions. Second operand has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:52,488 INFO L93 Difference]: Finished difference Result 713 states and 996 transitions. [2024-11-22 12:38:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 12:38:52,489 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-11-22 12:38:52,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:52,491 INFO L225 Difference]: With dead ends: 713 [2024-11-22 12:38:52,491 INFO L226 Difference]: Without dead ends: 363 [2024-11-22 12:38:52,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-22 12:38:52,493 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 93 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:52,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1501 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:38:52,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-22 12:38:52,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 339. [2024-11-22 12:38:52,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 280 states have (on average 1.3035714285714286) internal successors, (365), 282 states have internal predecessors, (365), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 12:38:52,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 473 transitions. [2024-11-22 12:38:52,519 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 473 transitions. Word has length 158 [2024-11-22 12:38:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:52,519 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 473 transitions. [2024-11-22 12:38:52,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 473 transitions. [2024-11-22 12:38:52,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:38:52,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:52,521 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:52,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 12:38:52,522 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:52,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:52,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2098989630, now seen corresponding path program 1 times [2024-11-22 12:38:52,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:52,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40275696] [2024-11-22 12:38:52,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:52,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:53,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:53,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40275696] [2024-11-22 12:38:53,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40275696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:53,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:53,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:38:53,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891074022] [2024-11-22 12:38:53,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:53,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:38:53,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:53,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:38:53,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:38:53,338 INFO L87 Difference]: Start difference. First operand 339 states and 473 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:53,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:53,796 INFO L93 Difference]: Finished difference Result 821 states and 1145 transitions. [2024-11-22 12:38:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:38:53,797 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:38:53,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:53,800 INFO L225 Difference]: With dead ends: 821 [2024-11-22 12:38:53,800 INFO L226 Difference]: Without dead ends: 485 [2024-11-22 12:38:53,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:38:53,802 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 84 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:53,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 918 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:38:53,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-22 12:38:53,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 379. [2024-11-22 12:38:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 320 states have (on average 1.31875) internal successors, (422), 322 states have internal predecessors, (422), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 12:38:53,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 530 transitions. [2024-11-22 12:38:53,822 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 530 transitions. Word has length 160 [2024-11-22 12:38:53,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:53,822 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 530 transitions. [2024-11-22 12:38:53,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:53,822 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 530 transitions. [2024-11-22 12:38:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:38:53,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:53,824 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:53,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 12:38:53,824 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:53,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1174909312, now seen corresponding path program 1 times [2024-11-22 12:38:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706129493] [2024-11-22 12:38:53,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:53,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:54,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:54,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706129493] [2024-11-22 12:38:54,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706129493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:54,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:54,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:38:54,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022031405] [2024-11-22 12:38:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:54,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:38:54,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:54,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:38:54,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:38:54,870 INFO L87 Difference]: Start difference. First operand 379 states and 530 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:55,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:55,466 INFO L93 Difference]: Finished difference Result 1031 states and 1436 transitions. [2024-11-22 12:38:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:38:55,467 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:38:55,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:55,470 INFO L225 Difference]: With dead ends: 1031 [2024-11-22 12:38:55,470 INFO L226 Difference]: Without dead ends: 655 [2024-11-22 12:38:55,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:38:55,471 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 81 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:55,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1149 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:38:55,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-22 12:38:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 431. [2024-11-22 12:38:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 372 states have (on average 1.3333333333333333) internal successors, (496), 374 states have internal predecessors, (496), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 12:38:55,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 604 transitions. [2024-11-22 12:38:55,502 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 604 transitions. Word has length 160 [2024-11-22 12:38:55,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:55,502 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 604 transitions. [2024-11-22 12:38:55,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:55,503 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 604 transitions. [2024-11-22 12:38:55,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:38:55,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:55,504 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:55,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 12:38:55,504 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:55,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:55,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1196829950, now seen corresponding path program 1 times [2024-11-22 12:38:55,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:55,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608093386] [2024-11-22 12:38:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:55,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:56,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:56,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608093386] [2024-11-22 12:38:56,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608093386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:56,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:56,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 12:38:56,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790218437] [2024-11-22 12:38:56,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:56,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 12:38:56,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:56,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 12:38:56,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:38:56,042 INFO L87 Difference]: Start difference. First operand 431 states and 604 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:56,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:56,241 INFO L93 Difference]: Finished difference Result 833 states and 1168 transitions. [2024-11-22 12:38:56,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:38:56,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-22 12:38:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:56,243 INFO L225 Difference]: With dead ends: 833 [2024-11-22 12:38:56,243 INFO L226 Difference]: Without dead ends: 405 [2024-11-22 12:38:56,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:38:56,245 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:56,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 632 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:38:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-22 12:38:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-22 12:38:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 346 states have (on average 1.3208092485549132) internal successors, (457), 348 states have internal predecessors, (457), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 12:38:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 565 transitions. [2024-11-22 12:38:56,275 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 565 transitions. Word has length 160 [2024-11-22 12:38:56,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:56,275 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 565 transitions. [2024-11-22 12:38:56,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:38:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 565 transitions. [2024-11-22 12:38:56,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:38:56,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:56,277 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:56,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 12:38:56,277 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:56,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:56,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1177324662, now seen corresponding path program 1 times [2024-11-22 12:38:56,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:56,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937631869] [2024-11-22 12:38:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:56,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:38:56,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937631869] [2024-11-22 12:38:56,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937631869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:38:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365709152] [2024-11-22 12:38:56,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:56,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:38:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:38:56,397 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 12:38:56,398 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 12:38:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:56,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:38:56,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:38:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:56,585 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:38:56,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365709152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:56,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:38:56,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-22 12:38:56,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138428934] [2024-11-22 12:38:56,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:56,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:38:56,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:38:56,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:38:56,587 INFO L87 Difference]: Start difference. First operand 405 states and 565 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:38:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:56,633 INFO L93 Difference]: Finished difference Result 819 states and 1143 transitions. [2024-11-22 12:38:56,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:38:56,634 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 12:38:56,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:56,636 INFO L225 Difference]: With dead ends: 819 [2024-11-22 12:38:56,636 INFO L226 Difference]: Without dead ends: 417 [2024-11-22 12:38:56,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:38:56,637 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:56,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:38:56,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-22 12:38:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-22 12:38:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 358 states have (on average 1.3100558659217878) internal successors, (469), 360 states have internal predecessors, (469), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-22 12:38:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 577 transitions. [2024-11-22 12:38:56,662 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 577 transitions. Word has length 160 [2024-11-22 12:38:56,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:56,662 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 577 transitions. [2024-11-22 12:38:56,662 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:38:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 577 transitions. [2024-11-22 12:38:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:38:56,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:56,664 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:56,671 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 12:38:56,864 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,SelfDestructingSolverStorable9 [2024-11-22 12:38:56,865 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:56,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash 919159224, now seen corresponding path program 1 times [2024-11-22 12:38:56,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:56,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204438856] [2024-11-22 12:38:56,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:56,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:57,771 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:57,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:57,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204438856] [2024-11-22 12:38:57,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204438856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:57,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:57,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 12:38:57,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188084701] [2024-11-22 12:38:57,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:57,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 12:38:57,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:57,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 12:38:57,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:38:57,774 INFO L87 Difference]: Start difference. First operand 417 states and 577 transitions. Second operand has 9 states, 7 states have (on average 9.0) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:58,268 INFO L93 Difference]: Finished difference Result 1173 states and 1624 transitions. [2024-11-22 12:38:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:38:58,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:38:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:58,273 INFO L225 Difference]: With dead ends: 1173 [2024-11-22 12:38:58,273 INFO L226 Difference]: Without dead ends: 759 [2024-11-22 12:38:58,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:38:58,275 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 85 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:58,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 963 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:38:58,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-22 12:38:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 743. [2024-11-22 12:38:58,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 642 states have (on average 1.3193146417445483) internal successors, (847), 648 states have internal predecessors, (847), 92 states have call successors, (92), 8 states have call predecessors, (92), 8 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-22 12:38:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1031 transitions. [2024-11-22 12:38:58,338 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1031 transitions. Word has length 160 [2024-11-22 12:38:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:58,338 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 1031 transitions. [2024-11-22 12:38:58,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 9 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:58,339 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1031 transitions. [2024-11-22 12:38:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:38:58,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:58,341 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:58,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 12:38:58,341 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:58,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash -521589342, now seen corresponding path program 1 times [2024-11-22 12:38:58,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:58,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986562017] [2024-11-22 12:38:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:58,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:38:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:38:59,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:38:59,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986562017] [2024-11-22 12:38:59,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986562017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:38:59,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:38:59,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:38:59,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544598755] [2024-11-22 12:38:59,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:38:59,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:38:59,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:38:59,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:38:59,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:38:59,272 INFO L87 Difference]: Start difference. First operand 743 states and 1031 transitions. Second operand has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:59,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:38:59,850 INFO L93 Difference]: Finished difference Result 1773 states and 2452 transitions. [2024-11-22 12:38:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:38:59,851 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:38:59,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:38:59,854 INFO L225 Difference]: With dead ends: 1773 [2024-11-22 12:38:59,854 INFO L226 Difference]: Without dead ends: 1033 [2024-11-22 12:38:59,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:38:59,858 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 81 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:38:59,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1065 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:38:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2024-11-22 12:38:59,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 793. [2024-11-22 12:38:59,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 692 states have (on average 1.3251445086705202) internal successors, (917), 698 states have internal predecessors, (917), 92 states have call successors, (92), 8 states have call predecessors, (92), 8 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-22 12:38:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1101 transitions. [2024-11-22 12:38:59,908 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1101 transitions. Word has length 160 [2024-11-22 12:38:59,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:38:59,908 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1101 transitions. [2024-11-22 12:38:59,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:38:59,909 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1101 transitions. [2024-11-22 12:38:59,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:38:59,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:38:59,911 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:38:59,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 12:38:59,911 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:38:59,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:38:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1779233248, now seen corresponding path program 1 times [2024-11-22 12:38:59,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:38:59,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193545404] [2024-11-22 12:38:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:38:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:38:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:00,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:00,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193545404] [2024-11-22 12:39:00,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193545404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:00,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:00,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:39:00,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458121300] [2024-11-22 12:39:00,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:00,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:39:00,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:00,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:39:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:39:00,146 INFO L87 Difference]: Start difference. First operand 793 states and 1101 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:39:00,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:00,494 INFO L93 Difference]: Finished difference Result 2091 states and 2886 transitions. [2024-11-22 12:39:00,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:39:00,494 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-22 12:39:00,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:00,499 INFO L225 Difference]: With dead ends: 2091 [2024-11-22 12:39:00,500 INFO L226 Difference]: Without dead ends: 1301 [2024-11-22 12:39:00,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:39:00,501 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 82 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:00,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 463 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:39:00,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-11-22 12:39:00,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 855. [2024-11-22 12:39:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 754 states have (on average 1.3196286472148542) internal successors, (995), 760 states have internal predecessors, (995), 92 states have call successors, (92), 8 states have call predecessors, (92), 8 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-22 12:39:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1179 transitions. [2024-11-22 12:39:00,556 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1179 transitions. Word has length 160 [2024-11-22 12:39:00,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:00,557 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1179 transitions. [2024-11-22 12:39:00,557 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:39:00,557 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1179 transitions. [2024-11-22 12:39:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:39:00,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:00,559 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:00,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 12:39:00,559 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:00,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash 499369570, now seen corresponding path program 1 times [2024-11-22 12:39:00,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:00,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986525820] [2024-11-22 12:39:00,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:00,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:01,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986525820] [2024-11-22 12:39:01,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986525820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:01,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:01,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 12:39:01,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187112797] [2024-11-22 12:39:01,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:01,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 12:39:01,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:01,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 12:39:01,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:39:01,125 INFO L87 Difference]: Start difference. First operand 855 states and 1179 transitions. Second operand has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:01,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:01,583 INFO L93 Difference]: Finished difference Result 2023 states and 2768 transitions. [2024-11-22 12:39:01,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:39:01,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:39:01,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:01,588 INFO L225 Difference]: With dead ends: 2023 [2024-11-22 12:39:01,588 INFO L226 Difference]: Without dead ends: 1159 [2024-11-22 12:39:01,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 12:39:01,590 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 90 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:01,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 725 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:39:01,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-22 12:39:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1015. [2024-11-22 12:39:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 886 states have (on average 1.299097065462754) internal successors, (1151), 894 states have internal predecessors, (1151), 116 states have call successors, (116), 12 states have call predecessors, (116), 12 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-22 12:39:01,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1383 transitions. [2024-11-22 12:39:01,667 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1383 transitions. Word has length 160 [2024-11-22 12:39:01,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:01,667 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1383 transitions. [2024-11-22 12:39:01,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1383 transitions. [2024-11-22 12:39:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:39:01,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:01,669 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:01,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 12:39:01,669 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:01,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:01,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1059707834, now seen corresponding path program 1 times [2024-11-22 12:39:01,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:01,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174641562] [2024-11-22 12:39:01,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:01,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:01,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:01,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174641562] [2024-11-22 12:39:01,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174641562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:01,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:01,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:39:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196874276] [2024-11-22 12:39:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:01,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:39:01,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:01,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:39:01,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:39:01,978 INFO L87 Difference]: Start difference. First operand 1015 states and 1383 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:39:02,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:02,106 INFO L93 Difference]: Finished difference Result 2157 states and 2934 transitions. [2024-11-22 12:39:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:39:02,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-22 12:39:02,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:02,112 INFO L225 Difference]: With dead ends: 2157 [2024-11-22 12:39:02,112 INFO L226 Difference]: Without dead ends: 1145 [2024-11-22 12:39:02,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 12:39:02,115 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 39 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:02,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 805 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:39:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-22 12:39:02,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1005. [2024-11-22 12:39:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 876 states have (on average 1.2910958904109588) internal successors, (1131), 884 states have internal predecessors, (1131), 116 states have call successors, (116), 12 states have call predecessors, (116), 12 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-22 12:39:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1363 transitions. [2024-11-22 12:39:02,191 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1363 transitions. Word has length 160 [2024-11-22 12:39:02,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:02,192 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1363 transitions. [2024-11-22 12:39:02,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:39:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1363 transitions. [2024-11-22 12:39:02,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:39:02,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:02,194 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:02,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 12:39:02,195 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:02,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:02,195 INFO L85 PathProgramCache]: Analyzing trace with hash -2076357376, now seen corresponding path program 1 times [2024-11-22 12:39:02,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:02,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379918961] [2024-11-22 12:39:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:02,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:02,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:02,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379918961] [2024-11-22 12:39:02,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379918961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:02,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:02,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 12:39:02,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919965594] [2024-11-22 12:39:02,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:02,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 12:39:02,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:02,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 12:39:02,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 12:39:02,538 INFO L87 Difference]: Start difference. First operand 1005 states and 1363 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:39:02,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:02,840 INFO L93 Difference]: Finished difference Result 2114 states and 2867 transitions. [2024-11-22 12:39:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 12:39:02,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-22 12:39:02,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:02,844 INFO L225 Difference]: With dead ends: 2114 [2024-11-22 12:39:02,844 INFO L226 Difference]: Without dead ends: 1112 [2024-11-22 12:39:02,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 12:39:02,846 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 104 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:02,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 537 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 12:39:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-11-22 12:39:02,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 790. [2024-11-22 12:39:02,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 689 states have (on average 1.2960812772133528) internal successors, (893), 694 states have internal predecessors, (893), 90 states have call successors, (90), 10 states have call predecessors, (90), 10 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 12:39:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1073 transitions. [2024-11-22 12:39:02,908 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1073 transitions. Word has length 160 [2024-11-22 12:39:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:02,908 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 1073 transitions. [2024-11-22 12:39:02,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-22 12:39:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1073 transitions. [2024-11-22 12:39:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:39:02,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:02,910 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:02,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 12:39:02,910 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:02,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:02,912 INFO L85 PathProgramCache]: Analyzing trace with hash -153129342, now seen corresponding path program 1 times [2024-11-22 12:39:02,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:02,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654848991] [2024-11-22 12:39:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:03,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654848991] [2024-11-22 12:39:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654848991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:03,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:03,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:39:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074303358] [2024-11-22 12:39:03,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:03,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:39:03,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:39:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:39:03,816 INFO L87 Difference]: Start difference. First operand 790 states and 1073 transitions. Second operand has 12 states, 9 states have (on average 7.0) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:39:04,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:04,417 INFO L93 Difference]: Finished difference Result 1787 states and 2423 transitions. [2024-11-22 12:39:04,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:39:04,417 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.0) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) Word has length 160 [2024-11-22 12:39:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:04,421 INFO L225 Difference]: With dead ends: 1787 [2024-11-22 12:39:04,421 INFO L226 Difference]: Without dead ends: 1000 [2024-11-22 12:39:04,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:39:04,423 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 84 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:04,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1037 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:39:04,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-11-22 12:39:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 669. [2024-11-22 12:39:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 589 states have (on average 1.303904923599321) internal successors, (768), 592 states have internal predecessors, (768), 71 states have call successors, (71), 8 states have call predecessors, (71), 8 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:39:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 910 transitions. [2024-11-22 12:39:04,468 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 910 transitions. Word has length 160 [2024-11-22 12:39:04,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:04,469 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 910 transitions. [2024-11-22 12:39:04,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.0) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:39:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 910 transitions. [2024-11-22 12:39:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:39:04,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:04,471 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:04,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 12:39:04,471 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:04,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:04,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1174197696, now seen corresponding path program 1 times [2024-11-22 12:39:04,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:04,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274188758] [2024-11-22 12:39:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:04,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:05,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:05,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274188758] [2024-11-22 12:39:05,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274188758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:05,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:05,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:39:05,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705954439] [2024-11-22 12:39:05,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:05,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:39:05,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:05,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:39:05,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:39:05,259 INFO L87 Difference]: Start difference. First operand 669 states and 910 transitions. Second operand has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:05,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:05,837 INFO L93 Difference]: Finished difference Result 1461 states and 1984 transitions. [2024-11-22 12:39:05,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 12:39:05,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:39:05,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:05,842 INFO L225 Difference]: With dead ends: 1461 [2024-11-22 12:39:05,842 INFO L226 Difference]: Without dead ends: 795 [2024-11-22 12:39:05,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 12:39:05,845 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 80 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:05,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1058 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:39:05,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-11-22 12:39:05,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 669. [2024-11-22 12:39:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 589 states have (on average 1.2971137521222411) internal successors, (764), 592 states have internal predecessors, (764), 71 states have call successors, (71), 8 states have call predecessors, (71), 8 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:39:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 906 transitions. [2024-11-22 12:39:05,888 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 906 transitions. Word has length 160 [2024-11-22 12:39:05,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:05,890 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 906 transitions. [2024-11-22 12:39:05,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:05,890 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 906 transitions. [2024-11-22 12:39:05,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:39:05,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:05,891 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:05,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 12:39:05,892 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:05,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:05,892 INFO L85 PathProgramCache]: Analyzing trace with hash -498957088, now seen corresponding path program 1 times [2024-11-22 12:39:05,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:05,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755003252] [2024-11-22 12:39:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:05,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:06,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:06,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755003252] [2024-11-22 12:39:06,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755003252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:06,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:06,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 12:39:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005207881] [2024-11-22 12:39:06,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:06,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 12:39:06,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:06,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 12:39:06,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-22 12:39:06,692 INFO L87 Difference]: Start difference. First operand 669 states and 906 transitions. Second operand has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:07,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:07,230 INFO L93 Difference]: Finished difference Result 1463 states and 1974 transitions. [2024-11-22 12:39:07,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 12:39:07,231 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:39:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:07,236 INFO L225 Difference]: With dead ends: 1463 [2024-11-22 12:39:07,236 INFO L226 Difference]: Without dead ends: 797 [2024-11-22 12:39:07,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:39:07,238 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 80 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:07,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1259 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:39:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2024-11-22 12:39:07,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 665. [2024-11-22 12:39:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 585 states have (on average 1.2923076923076924) internal successors, (756), 588 states have internal predecessors, (756), 71 states have call successors, (71), 8 states have call predecessors, (71), 8 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:39:07,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 898 transitions. [2024-11-22 12:39:07,282 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 898 transitions. Word has length 160 [2024-11-22 12:39:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:07,282 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 898 transitions. [2024-11-22 12:39:07,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.3) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 898 transitions. [2024-11-22 12:39:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 12:39:07,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:07,284 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:07,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 12:39:07,284 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:07,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash 522001824, now seen corresponding path program 1 times [2024-11-22 12:39:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:07,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997928585] [2024-11-22 12:39:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:08,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:08,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997928585] [2024-11-22 12:39:08,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997928585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:08,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:08,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 12:39:08,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437719811] [2024-11-22 12:39:08,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:08,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 12:39:08,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:08,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 12:39:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 12:39:08,038 INFO L87 Difference]: Start difference. First operand 665 states and 898 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:08,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:08,533 INFO L93 Difference]: Finished difference Result 1441 states and 1941 transitions. [2024-11-22 12:39:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 12:39:08,533 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-22 12:39:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:08,538 INFO L225 Difference]: With dead ends: 1441 [2024-11-22 12:39:08,538 INFO L226 Difference]: Without dead ends: 779 [2024-11-22 12:39:08,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-22 12:39:08,540 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 75 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:08,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1343 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:39:08,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-22 12:39:08,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 651. [2024-11-22 12:39:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 571 states have (on average 1.2889667250437828) internal successors, (736), 574 states have internal predecessors, (736), 71 states have call successors, (71), 8 states have call predecessors, (71), 8 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:39:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 878 transitions. [2024-11-22 12:39:08,587 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 878 transitions. Word has length 160 [2024-11-22 12:39:08,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:08,587 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 878 transitions. [2024-11-22 12:39:08,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-22 12:39:08,588 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 878 transitions. [2024-11-22 12:39:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 12:39:08,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:08,589 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:08,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 12:39:08,589 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:08,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1331949209, now seen corresponding path program 1 times [2024-11-22 12:39:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:08,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338244341] [2024-11-22 12:39:08,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:08,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:10,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:10,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338244341] [2024-11-22 12:39:10,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338244341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:10,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:39:10,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-22 12:39:10,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842242813] [2024-11-22 12:39:10,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:10,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 12:39:10,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:10,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 12:39:10,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2024-11-22 12:39:10,572 INFO L87 Difference]: Start difference. First operand 651 states and 878 transitions. Second operand has 24 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 24 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:39:13,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:13,573 INFO L93 Difference]: Finished difference Result 1719 states and 2299 transitions. [2024-11-22 12:39:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-22 12:39:13,574 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 24 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) Word has length 162 [2024-11-22 12:39:13,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:13,578 INFO L225 Difference]: With dead ends: 1719 [2024-11-22 12:39:13,578 INFO L226 Difference]: Without dead ends: 1071 [2024-11-22 12:39:13,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=228, Invalid=1934, Unknown=0, NotChecked=0, Total=2162 [2024-11-22 12:39:13,580 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 287 mSDsluCounter, 2911 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3093 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:13,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 3093 Invalid, 2042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 12:39:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-22 12:39:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 651. [2024-11-22 12:39:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 571 states have (on average 1.2889667250437828) internal successors, (736), 574 states have internal predecessors, (736), 71 states have call successors, (71), 8 states have call predecessors, (71), 8 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:39:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 878 transitions. [2024-11-22 12:39:13,630 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 878 transitions. Word has length 162 [2024-11-22 12:39:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:13,630 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 878 transitions. [2024-11-22 12:39:13,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 24 states have internal predecessors, (65), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 12:39:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 878 transitions. [2024-11-22 12:39:13,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 12:39:13,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:13,631 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:13,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 12:39:13,631 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:13,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash -198710584, now seen corresponding path program 1 times [2024-11-22 12:39:13,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:13,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005524301] [2024-11-22 12:39:13,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:13,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-22 12:39:13,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:39:13,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005524301] [2024-11-22 12:39:13,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005524301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:39:13,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585045131] [2024-11-22 12:39:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:13,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:39:13,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:39:13,749 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 12:39:13,750 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 12:39:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:39:13,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 12:39:13,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:39:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-22 12:39:13,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:39:13,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585045131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:39:13,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:39:13,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-22 12:39:13,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300449208] [2024-11-22 12:39:13,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:39:13,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 12:39:13,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:39:13,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 12:39:13,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:39:13,940 INFO L87 Difference]: Start difference. First operand 651 states and 878 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:39:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:39:13,998 INFO L93 Difference]: Finished difference Result 1314 states and 1773 transitions. [2024-11-22 12:39:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 12:39:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-22 12:39:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:39:14,002 INFO L225 Difference]: With dead ends: 1314 [2024-11-22 12:39:14,002 INFO L226 Difference]: Without dead ends: 666 [2024-11-22 12:39:14,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 12:39:14,004 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:39:14,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:39:14,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-22 12:39:14,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2024-11-22 12:39:14,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 586 states have (on average 1.2815699658703072) internal successors, (751), 589 states have internal predecessors, (751), 71 states have call successors, (71), 8 states have call predecessors, (71), 8 states have return successors, (71), 68 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-22 12:39:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 893 transitions. [2024-11-22 12:39:14,050 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 893 transitions. Word has length 162 [2024-11-22 12:39:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:39:14,051 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 893 transitions. [2024-11-22 12:39:14,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-22 12:39:14,051 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 893 transitions. [2024-11-22 12:39:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 12:39:14,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:39:14,052 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:39:14,061 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 12:39:14,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:39:14,253 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:39:14,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:39:14,253 INFO L85 PathProgramCache]: Analyzing trace with hash 329013799, now seen corresponding path program 1 times [2024-11-22 12:39:14,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:39:14,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742959604] [2024-11-22 12:39:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:39:14,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:39:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat