./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-27.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 e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:33:29,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:33:29,796 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:33:29,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:33:29,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:33:29,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:33:29,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:33:29,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:33:29,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:33:29,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:33:29,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:33:29,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:33:29,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:33:29,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:33:29,842 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:33:29,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:33:29,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:33:29,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:33:29,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:33:29,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:33:29,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:33:29,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:33:29,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:33:29,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:33:29,848 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:33:29,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:33:29,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:33:29,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:33:29,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:33:29,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:33:29,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:33:29,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:33:29,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:33:29,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:33:29,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:33:29,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:33:29,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:33:29,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:33:29,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:33:29,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:33:29,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:33:29,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:33:29,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4734516ebdc79a9f036bc9e9f726759934a87ca68d15ce0ae4878f15df0c2c4 [2024-11-19 00:33:30,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:33:30,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:33:30,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:33:30,151 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:33:30,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:33:30,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-19 00:33:31,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:33:31,835 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:33:31,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-27.i [2024-11-19 00:33:31,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae71b4634/4c4ea94d4d784482a0ce9383d246a028/FLAGc9feebb28 [2024-11-19 00:33:32,202 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae71b4634/4c4ea94d4d784482a0ce9383d246a028 [2024-11-19 00:33:32,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:33:32,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:33:32,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:33:32,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:33:32,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:33:32,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf814ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32, skipping insertion in model container [2024-11-19 00:33:32,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:33:32,437 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-27.i[916,929] [2024-11-19 00:33:32,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:33:32,544 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:33:32,558 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-27.i[916,929] [2024-11-19 00:33:32,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:33:32,636 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:33:32,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32 WrapperNode [2024-11-19 00:33:32,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:33:32,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:33:32,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:33:32,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:33:32,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,736 INFO L138 Inliner]: procedures = 26, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 433 [2024-11-19 00:33:32,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:33:32,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:33:32,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:33:32,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:33:32,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,811 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2024-11-19 00:33:32,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:33:32,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:33:32,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:33:32,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:33:32,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (1/1) ... [2024-11-19 00:33:32,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:33:32,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:32,903 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) [2024-11-19 00:33:32,905 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 [2024-11-19 00:33:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:33:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:33:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:33:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:33:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:33:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:33:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:33:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:33:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:33:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:33:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:33:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:33:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:33:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:33:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:33:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:33:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:33:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:33:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:33:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:33:33,061 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:33:33,063 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:33:33,506 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-19 00:33:33,506 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:33:33,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:33:33,532 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:33:33,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:33:33 BoogieIcfgContainer [2024-11-19 00:33:33,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:33:33,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:33:33,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:33:33,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:33:33,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:33:32" (1/3) ... [2024-11-19 00:33:33,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15609c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:33:33, skipping insertion in model container [2024-11-19 00:33:33,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:33:32" (2/3) ... [2024-11-19 00:33:33,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15609c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:33:33, skipping insertion in model container [2024-11-19 00:33:33,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:33:33" (3/3) ... [2024-11-19 00:33:33,541 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-27.i [2024-11-19 00:33:33,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:33:33,555 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:33:33,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:33:33,619 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;@25eacaa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:33:33,619 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:33:33,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:33:33,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 00:33:33,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:33,636 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:33,637 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:33,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:33,642 INFO L85 PathProgramCache]: Analyzing trace with hash -599042020, now seen corresponding path program 1 times [2024-11-19 00:33:33,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:33,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529345817] [2024-11-19 00:33:33,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:33,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 00:33:34,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529345817] [2024-11-19 00:33:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529345817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:33:34,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140922743] [2024-11-19 00:33:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:34,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:34,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:34,032 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) [2024-11-19 00:33:34,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:33:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:34,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:33:34,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:33:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 00:33:34,283 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:33:34,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140922743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:34,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:33:34,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:33:34,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916585910] [2024-11-19 00:33:34,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:34,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:33:34,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:34,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:33:34,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:33:34,348 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:34,382 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-11-19 00:33:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:33:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-19 00:33:34,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:34,392 INFO L225 Difference]: With dead ends: 181 [2024-11-19 00:33:34,393 INFO L226 Difference]: Without dead ends: 90 [2024-11-19 00:33:34,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:33:34,402 INFO L432 NwaCegarLoop]: 129 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, 129 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 [2024-11-19 00:33:34,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:33:34,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-19 00:33:34,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-19 00:33:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 00:33:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-19 00:33:34,459 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-11-19 00:33:34,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:34,460 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-19 00:33:34,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:34,461 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-19 00:33:34,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 00:33:34,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:34,464 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:34,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:33:34,669 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 [2024-11-19 00:33:34,670 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:34,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1244012870, now seen corresponding path program 1 times [2024-11-19 00:33:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721008695] [2024-11-19 00:33:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:36,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:36,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721008695] [2024-11-19 00:33:36,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721008695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:36,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:36,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:33:36,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17958742] [2024-11-19 00:33:36,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:36,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:33:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:36,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:33:36,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:33:36,504 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:36,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:36,845 INFO L93 Difference]: Finished difference Result 232 states and 332 transitions. [2024-11-19 00:33:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:33:36,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-19 00:33:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:36,851 INFO L225 Difference]: With dead ends: 232 [2024-11-19 00:33:36,851 INFO L226 Difference]: Without dead ends: 145 [2024-11-19 00:33:36,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:36,853 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 69 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:36,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 659 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:33:36,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-19 00:33:36,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-11-19 00:33:36,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 116 states have (on average 1.353448275862069) internal successors, (157), 117 states have internal predecessors, (157), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 00:33:36,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2024-11-19 00:33:36,870 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 131 [2024-11-19 00:33:36,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:36,871 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2024-11-19 00:33:36,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:36,871 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2024-11-19 00:33:36,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 00:33:36,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:36,874 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:36,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:33:36,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:36,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:36,875 INFO L85 PathProgramCache]: Analyzing trace with hash -828522667, now seen corresponding path program 1 times [2024-11-19 00:33:36,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:36,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022125427] [2024-11-19 00:33:36,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:36,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:37,831 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:37,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:37,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022125427] [2024-11-19 00:33:37,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022125427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:37,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:37,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:37,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654232245] [2024-11-19 00:33:37,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:37,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:37,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:37,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:37,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:37,835 INFO L87 Difference]: Start difference. First operand 142 states and 203 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:38,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:38,145 INFO L93 Difference]: Finished difference Result 362 states and 520 transitions. [2024-11-19 00:33:38,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:33:38,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-19 00:33:38,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:38,154 INFO L225 Difference]: With dead ends: 362 [2024-11-19 00:33:38,155 INFO L226 Difference]: Without dead ends: 223 [2024-11-19 00:33:38,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:38,159 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 110 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:38,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 742 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:33:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-19 00:33:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2024-11-19 00:33:38,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 175 states have (on average 1.3371428571428572) internal successors, (234), 176 states have internal predecessors, (234), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:33:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 314 transitions. [2024-11-19 00:33:38,206 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 314 transitions. Word has length 133 [2024-11-19 00:33:38,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:38,207 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 314 transitions. [2024-11-19 00:33:38,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 314 transitions. [2024-11-19 00:33:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 00:33:38,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:38,212 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:38,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:33:38,213 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:38,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:38,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1503590059, now seen corresponding path program 1 times [2024-11-19 00:33:38,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:38,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383970310] [2024-11-19 00:33:38,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:38,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:38,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:38,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383970310] [2024-11-19 00:33:38,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383970310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:38,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:38,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:38,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307461948] [2024-11-19 00:33:38,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:38,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:38,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:38,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:38,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:38,873 INFO L87 Difference]: Start difference. First operand 219 states and 314 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:39,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:39,192 INFO L93 Difference]: Finished difference Result 411 states and 587 transitions. [2024-11-19 00:33:39,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:33:39,193 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-19 00:33:39,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:39,196 INFO L225 Difference]: With dead ends: 411 [2024-11-19 00:33:39,197 INFO L226 Difference]: Without dead ends: 179 [2024-11-19 00:33:39,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:39,199 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 113 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:39,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 537 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:33:39,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-19 00:33:39,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2024-11-19 00:33:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 137 states have internal predecessors, (178), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 00:33:39,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2024-11-19 00:33:39,222 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 133 [2024-11-19 00:33:39,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:39,223 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2024-11-19 00:33:39,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:39,223 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2024-11-19 00:33:39,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 00:33:39,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:39,225 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:39,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:33:39,226 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:39,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:39,226 INFO L85 PathProgramCache]: Analyzing trace with hash -252020168, now seen corresponding path program 1 times [2024-11-19 00:33:39,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:39,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775006170] [2024-11-19 00:33:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:39,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:39,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775006170] [2024-11-19 00:33:39,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775006170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:39,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:39,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:39,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577022748] [2024-11-19 00:33:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:39,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:39,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:39,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:39,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:39,731 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:39,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:39,834 INFO L93 Difference]: Finished difference Result 451 states and 633 transitions. [2024-11-19 00:33:39,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:33:39,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-19 00:33:39,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:39,838 INFO L225 Difference]: With dead ends: 451 [2024-11-19 00:33:39,838 INFO L226 Difference]: Without dead ends: 279 [2024-11-19 00:33:39,839 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 [2024-11-19 00:33:39,841 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 76 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:39,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 690 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:33:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-19 00:33:39,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2024-11-19 00:33:39,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 233 states have internal predecessors, (309), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-19 00:33:39,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 385 transitions. [2024-11-19 00:33:39,866 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 385 transitions. Word has length 134 [2024-11-19 00:33:39,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:39,868 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 385 transitions. [2024-11-19 00:33:39,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 385 transitions. [2024-11-19 00:33:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 00:33:39,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:39,873 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:39,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:33:39,873 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:39,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:39,873 INFO L85 PathProgramCache]: Analyzing trace with hash -314059782, now seen corresponding path program 1 times [2024-11-19 00:33:39,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:39,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52411225] [2024-11-19 00:33:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:39,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:40,287 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:40,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:40,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52411225] [2024-11-19 00:33:40,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52411225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:40,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:40,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:40,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135998264] [2024-11-19 00:33:40,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:40,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:40,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:40,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:40,292 INFO L87 Difference]: Start difference. First operand 275 states and 385 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:40,415 INFO L93 Difference]: Finished difference Result 657 states and 911 transitions. [2024-11-19 00:33:40,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:33:40,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-11-19 00:33:40,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:40,418 INFO L225 Difference]: With dead ends: 657 [2024-11-19 00:33:40,418 INFO L226 Difference]: Without dead ends: 385 [2024-11-19 00:33:40,419 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 [2024-11-19 00:33:40,422 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 67 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:40,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 754 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:33:40,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-19 00:33:40,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 215. [2024-11-19 00:33:40,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 175 states have internal predecessors, (227), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 00:33:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 295 transitions. [2024-11-19 00:33:40,442 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 295 transitions. Word has length 134 [2024-11-19 00:33:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:40,443 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 295 transitions. [2024-11-19 00:33:40,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 295 transitions. [2024-11-19 00:33:40,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:33:40,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:40,445 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:40,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:33:40,445 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:40,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:40,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1315430834, now seen corresponding path program 1 times [2024-11-19 00:33:40,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:40,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667700127] [2024-11-19 00:33:40,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:40,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:41,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:41,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667700127] [2024-11-19 00:33:41,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667700127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:41,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:41,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:33:41,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481754484] [2024-11-19 00:33:41,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:41,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:33:41,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:41,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:33:41,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:33:41,688 INFO L87 Difference]: Start difference. First operand 215 states and 295 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:42,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:42,129 INFO L93 Difference]: Finished difference Result 493 states and 674 transitions. [2024-11-19 00:33:42,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:33:42,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-19 00:33:42,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:42,132 INFO L225 Difference]: With dead ends: 493 [2024-11-19 00:33:42,133 INFO L226 Difference]: Without dead ends: 281 [2024-11-19 00:33:42,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:33:42,134 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 71 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:42,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1076 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:33:42,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-19 00:33:42,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 278. [2024-11-19 00:33:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 230 states have (on average 1.3) internal successors, (299), 231 states have internal predecessors, (299), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:33:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 379 transitions. [2024-11-19 00:33:42,160 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 379 transitions. Word has length 135 [2024-11-19 00:33:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:42,160 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 379 transitions. [2024-11-19 00:33:42,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 379 transitions. [2024-11-19 00:33:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:33:42,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:42,163 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:42,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:33:42,163 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:42,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:42,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1573596272, now seen corresponding path program 1 times [2024-11-19 00:33:42,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:42,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750946583] [2024-11-19 00:33:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:42,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:43,089 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:43,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:43,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750946583] [2024-11-19 00:33:43,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750946583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:43,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:43,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:33:43,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195041975] [2024-11-19 00:33:43,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:43,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:33:43,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:43,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:33:43,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:33:43,092 INFO L87 Difference]: Start difference. First operand 278 states and 379 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:43,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:43,392 INFO L93 Difference]: Finished difference Result 556 states and 755 transitions. [2024-11-19 00:33:43,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:33:43,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-19 00:33:43,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:43,394 INFO L225 Difference]: With dead ends: 556 [2024-11-19 00:33:43,394 INFO L226 Difference]: Without dead ends: 281 [2024-11-19 00:33:43,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:43,396 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 59 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:43,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 935 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:33:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-19 00:33:43,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 279. [2024-11-19 00:33:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 230 states have (on average 1.291304347826087) internal successors, (297), 231 states have internal predecessors, (297), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:33:43,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 377 transitions. [2024-11-19 00:33:43,414 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 377 transitions. Word has length 135 [2024-11-19 00:33:43,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:43,415 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 377 transitions. [2024-11-19 00:33:43,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:43,415 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 377 transitions. [2024-11-19 00:33:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:33:43,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:43,417 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:43,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:33:43,417 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:43,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:43,418 INFO L85 PathProgramCache]: Analyzing trace with hash 497782384, now seen corresponding path program 1 times [2024-11-19 00:33:43,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:43,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151859557] [2024-11-19 00:33:43,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:44,243 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:44,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:44,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151859557] [2024-11-19 00:33:44,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151859557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:44,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:44,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:33:44,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739869051] [2024-11-19 00:33:44,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:44,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:33:44,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:33:44,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:33:44,246 INFO L87 Difference]: Start difference. First operand 279 states and 377 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:44,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:44,495 INFO L93 Difference]: Finished difference Result 561 states and 755 transitions. [2024-11-19 00:33:44,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:33:44,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-19 00:33:44,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:44,498 INFO L225 Difference]: With dead ends: 561 [2024-11-19 00:33:44,498 INFO L226 Difference]: Without dead ends: 285 [2024-11-19 00:33:44,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:44,501 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 62 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:44,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 654 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:33:44,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-19 00:33:44,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 283. [2024-11-19 00:33:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2832618025751072) internal successors, (299), 234 states have internal predecessors, (299), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:33:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 379 transitions. [2024-11-19 00:33:44,520 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 379 transitions. Word has length 135 [2024-11-19 00:33:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:44,523 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 379 transitions. [2024-11-19 00:33:44,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 379 transitions. [2024-11-19 00:33:44,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:33:44,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:44,525 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:44,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:33:44,525 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:44,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:44,525 INFO L85 PathProgramCache]: Analyzing trace with hash 755947822, now seen corresponding path program 1 times [2024-11-19 00:33:44,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:44,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087504513] [2024-11-19 00:33:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:45,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:45,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087504513] [2024-11-19 00:33:45,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087504513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:45,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:45,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:33:45,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704131371] [2024-11-19 00:33:45,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:45,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:33:45,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:45,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:33:45,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:33:45,438 INFO L87 Difference]: Start difference. First operand 283 states and 379 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:45,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:45,846 INFO L93 Difference]: Finished difference Result 583 states and 776 transitions. [2024-11-19 00:33:45,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:33:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-19 00:33:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:45,849 INFO L225 Difference]: With dead ends: 583 [2024-11-19 00:33:45,849 INFO L226 Difference]: Without dead ends: 303 [2024-11-19 00:33:45,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:33:45,850 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 61 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:45,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1247 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:33:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-19 00:33:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 283. [2024-11-19 00:33:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 233 states have (on average 1.2789699570815452) internal successors, (298), 234 states have internal predecessors, (298), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:33:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 378 transitions. [2024-11-19 00:33:45,870 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 378 transitions. Word has length 135 [2024-11-19 00:33:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:45,871 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 378 transitions. [2024-11-19 00:33:45,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 378 transitions. [2024-11-19 00:33:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:33:45,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:45,872 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:45,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:33:45,873 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:45,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash -697675202, now seen corresponding path program 1 times [2024-11-19 00:33:45,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:45,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566012809] [2024-11-19 00:33:45,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:46,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:46,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566012809] [2024-11-19 00:33:46,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566012809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:46,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:46,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:46,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165470262] [2024-11-19 00:33:46,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:46,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:46,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:46,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:46,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:46,212 INFO L87 Difference]: Start difference. First operand 283 states and 378 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:46,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:46,318 INFO L93 Difference]: Finished difference Result 703 states and 937 transitions. [2024-11-19 00:33:46,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:33:46,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-19 00:33:46,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:46,323 INFO L225 Difference]: With dead ends: 703 [2024-11-19 00:33:46,323 INFO L226 Difference]: Without dead ends: 423 [2024-11-19 00:33:46,324 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 [2024-11-19 00:33:46,325 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:46,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 464 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:33:46,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-19 00:33:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 328. [2024-11-19 00:33:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 278 states have (on average 1.2661870503597121) internal successors, (352), 279 states have internal predecessors, (352), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:33:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 432 transitions. [2024-11-19 00:33:46,350 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 432 transitions. Word has length 135 [2024-11-19 00:33:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:46,350 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 432 transitions. [2024-11-19 00:33:46,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 432 transitions. [2024-11-19 00:33:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:33:46,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:46,352 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:46,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:33:46,354 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:46,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:46,354 INFO L85 PathProgramCache]: Analyzing trace with hash 3389376, now seen corresponding path program 1 times [2024-11-19 00:33:46,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61498890] [2024-11-19 00:33:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:46,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:47,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:47,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61498890] [2024-11-19 00:33:47,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61498890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:47,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:47,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:33:47,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615400897] [2024-11-19 00:33:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:47,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:33:47,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:47,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:33:47,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:33:47,317 INFO L87 Difference]: Start difference. First operand 328 states and 432 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:47,808 INFO L93 Difference]: Finished difference Result 863 states and 1130 transitions. [2024-11-19 00:33:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:33:47,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-19 00:33:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:47,812 INFO L225 Difference]: With dead ends: 863 [2024-11-19 00:33:47,813 INFO L226 Difference]: Without dead ends: 538 [2024-11-19 00:33:47,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:33:47,814 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 70 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:47,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 883 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:33:47,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-19 00:33:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 534. [2024-11-19 00:33:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 453 states have (on average 1.2538631346578366) internal successors, (568), 457 states have internal predecessors, (568), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:47,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 692 transitions. [2024-11-19 00:33:47,857 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 692 transitions. Word has length 135 [2024-11-19 00:33:47,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:47,857 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 692 transitions. [2024-11-19 00:33:47,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 692 transitions. [2024-11-19 00:33:47,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 00:33:47,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:47,860 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:47,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:33:47,861 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:47,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:47,861 INFO L85 PathProgramCache]: Analyzing trace with hash 65428990, now seen corresponding path program 1 times [2024-11-19 00:33:47,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:47,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996657131] [2024-11-19 00:33:47,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:47,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:48,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:48,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996657131] [2024-11-19 00:33:48,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996657131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:48,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:48,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:33:48,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334530229] [2024-11-19 00:33:48,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:48,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:33:48,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:48,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:33:48,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:33:48,076 INFO L87 Difference]: Start difference. First operand 534 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:48,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:48,166 INFO L93 Difference]: Finished difference Result 1060 states and 1372 transitions. [2024-11-19 00:33:48,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:33:48,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-19 00:33:48,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:48,170 INFO L225 Difference]: With dead ends: 1060 [2024-11-19 00:33:48,171 INFO L226 Difference]: Without dead ends: 529 [2024-11-19 00:33:48,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:48,173 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:48,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 458 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:33:48,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-19 00:33:48,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 525. [2024-11-19 00:33:48,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 444 states have (on average 1.2454954954954955) internal successors, (553), 448 states have internal predecessors, (553), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:48,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 677 transitions. [2024-11-19 00:33:48,229 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 677 transitions. Word has length 135 [2024-11-19 00:33:48,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:48,230 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 677 transitions. [2024-11-19 00:33:48,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 677 transitions. [2024-11-19 00:33:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:48,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:48,233 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:48,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:33:48,233 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:48,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash -568417833, now seen corresponding path program 1 times [2024-11-19 00:33:48,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:48,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281334881] [2024-11-19 00:33:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:48,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:49,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:49,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281334881] [2024-11-19 00:33:49,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281334881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:49,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:49,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:33:49,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871847172] [2024-11-19 00:33:49,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:49,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:33:49,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:49,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:33:49,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:33:49,294 INFO L87 Difference]: Start difference. First operand 525 states and 677 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:33:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:49,977 INFO L93 Difference]: Finished difference Result 1601 states and 2045 transitions. [2024-11-19 00:33:49,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:33:49,978 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-19 00:33:49,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:49,983 INFO L225 Difference]: With dead ends: 1601 [2024-11-19 00:33:49,983 INFO L226 Difference]: Without dead ends: 1079 [2024-11-19 00:33:49,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:33:49,986 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 325 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:49,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 981 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:33:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-19 00:33:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 619. [2024-11-19 00:33:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 538 states have (on average 1.258364312267658) internal successors, (677), 542 states have internal predecessors, (677), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 801 transitions. [2024-11-19 00:33:50,046 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 801 transitions. Word has length 139 [2024-11-19 00:33:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:50,047 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 801 transitions. [2024-11-19 00:33:50,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:33:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 801 transitions. [2024-11-19 00:33:50,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:50,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:50,049 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:50,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:33:50,050 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:50,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:50,050 INFO L85 PathProgramCache]: Analyzing trace with hash 111640537, now seen corresponding path program 1 times [2024-11-19 00:33:50,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:50,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797054746] [2024-11-19 00:33:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:50,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:51,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:51,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797054746] [2024-11-19 00:33:51,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797054746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:51,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:51,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:33:51,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458170219] [2024-11-19 00:33:51,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:51,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:33:51,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:51,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:33:51,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:33:51,039 INFO L87 Difference]: Start difference. First operand 619 states and 801 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:51,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:51,552 INFO L93 Difference]: Finished difference Result 1503 states and 1934 transitions. [2024-11-19 00:33:51,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:33:51,552 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-19 00:33:51,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:51,557 INFO L225 Difference]: With dead ends: 1503 [2024-11-19 00:33:51,557 INFO L226 Difference]: Without dead ends: 887 [2024-11-19 00:33:51,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:33:51,560 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 66 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:51,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1145 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:33:51,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-19 00:33:51,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 729. [2024-11-19 00:33:51,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 648 states have (on average 1.2546296296296295) internal successors, (813), 652 states have internal predecessors, (813), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 937 transitions. [2024-11-19 00:33:51,612 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 937 transitions. Word has length 139 [2024-11-19 00:33:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:51,613 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 937 transitions. [2024-11-19 00:33:51,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 937 transitions. [2024-11-19 00:33:51,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:51,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:51,616 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:51,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:33:51,617 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:51,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1376130766, now seen corresponding path program 1 times [2024-11-19 00:33:51,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:51,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825528491] [2024-11-19 00:33:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:51,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:51,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825528491] [2024-11-19 00:33:51,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825528491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:51,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:51,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:51,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947171001] [2024-11-19 00:33:51,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:51,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:51,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:51,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:51,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:51,933 INFO L87 Difference]: Start difference. First operand 729 states and 937 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:52,067 INFO L93 Difference]: Finished difference Result 1576 states and 2029 transitions. [2024-11-19 00:33:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:33:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-19 00:33:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:52,072 INFO L225 Difference]: With dead ends: 1576 [2024-11-19 00:33:52,072 INFO L226 Difference]: Without dead ends: 850 [2024-11-19 00:33:52,074 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 [2024-11-19 00:33:52,074 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 103 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:52,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 459 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:33:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-19 00:33:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 762. [2024-11-19 00:33:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 681 states have (on average 1.2555066079295154) internal successors, (855), 685 states have internal predecessors, (855), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:52,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 979 transitions. [2024-11-19 00:33:52,142 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 979 transitions. Word has length 139 [2024-11-19 00:33:52,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:52,144 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 979 transitions. [2024-11-19 00:33:52,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 979 transitions. [2024-11-19 00:33:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:52,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:52,148 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:52,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:33:52,148 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:52,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:52,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2056189136, now seen corresponding path program 1 times [2024-11-19 00:33:52,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:52,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846984740] [2024-11-19 00:33:52,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:52,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:33:52,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:52,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846984740] [2024-11-19 00:33:52,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846984740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:33:52,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964816958] [2024-11-19 00:33:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:52,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:52,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:52,372 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) [2024-11-19 00:33:52,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:33:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:52,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 00:33:52,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:33:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:52,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:33:52,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964816958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:52,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:33:52,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-11-19 00:33:52,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932174096] [2024-11-19 00:33:52,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:52,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:52,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:52,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:52,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:33:52,653 INFO L87 Difference]: Start difference. First operand 762 states and 979 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:52,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:52,735 INFO L93 Difference]: Finished difference Result 1542 states and 1982 transitions. [2024-11-19 00:33:52,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:33:52,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-19 00:33:52,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:52,739 INFO L225 Difference]: With dead ends: 1542 [2024-11-19 00:33:52,740 INFO L226 Difference]: Without dead ends: 783 [2024-11-19 00:33:52,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:33:52,742 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:52,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 606 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:33:52,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-19 00:33:52,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 771. [2024-11-19 00:33:52,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 690 states have (on average 1.2521739130434784) internal successors, (864), 694 states have internal predecessors, (864), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 988 transitions. [2024-11-19 00:33:52,788 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 988 transitions. Word has length 139 [2024-11-19 00:33:52,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:52,788 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 988 transitions. [2024-11-19 00:33:52,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 988 transitions. [2024-11-19 00:33:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:52,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:52,791 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:52,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 00:33:52,991 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,SelfDestructingSolverStorable16 [2024-11-19 00:33:52,992 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:52,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:52,992 INFO L85 PathProgramCache]: Analyzing trace with hash -349563115, now seen corresponding path program 1 times [2024-11-19 00:33:52,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:52,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279437860] [2024-11-19 00:33:52,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:52,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:53,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:53,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279437860] [2024-11-19 00:33:53,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279437860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:53,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:53,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:33:53,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306780990] [2024-11-19 00:33:53,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:53,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:33:53,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:33:53,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:33:53,423 INFO L87 Difference]: Start difference. First operand 771 states and 988 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:53,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:53,664 INFO L93 Difference]: Finished difference Result 1703 states and 2170 transitions. [2024-11-19 00:33:53,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:33:53,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-19 00:33:53,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:53,669 INFO L225 Difference]: With dead ends: 1703 [2024-11-19 00:33:53,669 INFO L226 Difference]: Without dead ends: 935 [2024-11-19 00:33:53,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:33:53,671 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 61 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:53,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 462 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:33:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-19 00:33:53,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 728. [2024-11-19 00:33:53,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 647 states have (on average 1.2457496136012365) internal successors, (806), 651 states have internal predecessors, (806), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 930 transitions. [2024-11-19 00:33:53,715 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 930 transitions. Word has length 139 [2024-11-19 00:33:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:53,716 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 930 transitions. [2024-11-19 00:33:53,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:33:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 930 transitions. [2024-11-19 00:33:53,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:53,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:53,718 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:53,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:33:53,718 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:53,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:53,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1803321429, now seen corresponding path program 1 times [2024-11-19 00:33:53,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:53,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893971478] [2024-11-19 00:33:53,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:53,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:54,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:54,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893971478] [2024-11-19 00:33:54,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893971478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:54,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:54,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:33:54,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343603782] [2024-11-19 00:33:54,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:54,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:33:54,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:54,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:33:54,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:33:54,622 INFO L87 Difference]: Start difference. First operand 728 states and 930 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:55,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:55,376 INFO L93 Difference]: Finished difference Result 2038 states and 2582 transitions. [2024-11-19 00:33:55,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:33:55,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-19 00:33:55,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:55,383 INFO L225 Difference]: With dead ends: 2038 [2024-11-19 00:33:55,383 INFO L226 Difference]: Without dead ends: 1313 [2024-11-19 00:33:55,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:33:55,386 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 326 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:55,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1275 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:33:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-11-19 00:33:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 823. [2024-11-19 00:33:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 742 states have (on average 1.2547169811320755) internal successors, (931), 746 states have internal predecessors, (931), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:55,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1055 transitions. [2024-11-19 00:33:55,441 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1055 transitions. Word has length 139 [2024-11-19 00:33:55,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:55,442 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1055 transitions. [2024-11-19 00:33:55,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:55,442 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1055 transitions. [2024-11-19 00:33:55,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:55,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:55,444 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:55,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 00:33:55,445 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:55,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:55,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1811587497, now seen corresponding path program 1 times [2024-11-19 00:33:55,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:55,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20835606] [2024-11-19 00:33:55,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:55,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:33:55,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:55,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20835606] [2024-11-19 00:33:55,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20835606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:33:55,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:33:55,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:33:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68290836] [2024-11-19 00:33:55,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:33:55,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:33:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:55,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:33:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:33:55,940 INFO L87 Difference]: Start difference. First operand 823 states and 1055 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:56,257 INFO L93 Difference]: Finished difference Result 1865 states and 2381 transitions. [2024-11-19 00:33:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:33:56,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-19 00:33:56,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:56,263 INFO L225 Difference]: With dead ends: 1865 [2024-11-19 00:33:56,263 INFO L226 Difference]: Without dead ends: 1044 [2024-11-19 00:33:56,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:33:56,265 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 59 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:56,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 768 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:33:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2024-11-19 00:33:56,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 910. [2024-11-19 00:33:56,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 829 states have (on average 1.253317249698432) internal successors, (1039), 833 states have internal predecessors, (1039), 62 states have call successors, (62), 18 states have call predecessors, (62), 18 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1163 transitions. [2024-11-19 00:33:56,316 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1163 transitions. Word has length 139 [2024-11-19 00:33:56,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:56,316 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1163 transitions. [2024-11-19 00:33:56,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:33:56,317 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1163 transitions. [2024-11-19 00:33:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:56,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:56,319 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:56,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:33:56,319 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:56,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:56,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2022176147, now seen corresponding path program 1 times [2024-11-19 00:33:56,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:56,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507812506] [2024-11-19 00:33:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:56,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:33:56,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:33:56,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507812506] [2024-11-19 00:33:56,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507812506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:33:56,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594095544] [2024-11-19 00:33:56,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:56,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:56,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:33:56,702 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) [2024-11-19 00:33:56,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:33:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:33:56,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 00:33:56,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:33:56,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-19 00:33:57,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-19 00:33:57,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-11-19 00:33:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 268 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-19 00:33:57,086 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:33:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 18 proven. 30 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 00:33:57,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594095544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:33:57,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:33:57,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-19 00:33:57,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271836271] [2024-11-19 00:33:57,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:33:57,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:33:57,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:33:57,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:33:57,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:33:57,299 INFO L87 Difference]: Start difference. First operand 910 states and 1163 transitions. Second operand has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-19 00:33:57,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:33:57,690 INFO L93 Difference]: Finished difference Result 1669 states and 2117 transitions. [2024-11-19 00:33:57,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:33:57,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) Word has length 139 [2024-11-19 00:33:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:33:57,695 INFO L225 Difference]: With dead ends: 1669 [2024-11-19 00:33:57,696 INFO L226 Difference]: Without dead ends: 762 [2024-11-19 00:33:57,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:33:57,698 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 141 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:33:57,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 354 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:33:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-19 00:33:57,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 734. [2024-11-19 00:33:57,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 649 states have (on average 1.234206471494607) internal successors, (801), 653 states have internal predecessors, (801), 62 states have call successors, (62), 22 states have call predecessors, (62), 22 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:33:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 925 transitions. [2024-11-19 00:33:57,767 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 925 transitions. Word has length 139 [2024-11-19 00:33:57,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:33:57,767 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 925 transitions. [2024-11-19 00:33:57,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 13 states have internal predecessors, (85), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 6 states have call successors, (39) [2024-11-19 00:33:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 925 transitions. [2024-11-19 00:33:57,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:33:57,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:33:57,769 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:33:57,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 00:33:57,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:33:57,974 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:33:57,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:33:57,974 INFO L85 PathProgramCache]: Analyzing trace with hash -597753543, now seen corresponding path program 1 times [2024-11-19 00:33:57,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:33:57,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532640468] [2024-11-19 00:33:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:33:57,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:33:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:00,581 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:00,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:00,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532640468] [2024-11-19 00:34:00,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532640468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:00,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:00,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-19 00:34:00,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813402052] [2024-11-19 00:34:00,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:00,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 00:34:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:00,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 00:34:00,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:34:00,584 INFO L87 Difference]: Start difference. First operand 734 states and 925 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-19 00:34:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:03,617 INFO L93 Difference]: Finished difference Result 1859 states and 2329 transitions. [2024-11-19 00:34:03,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 00:34:03,618 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 139 [2024-11-19 00:34:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:03,624 INFO L225 Difference]: With dead ends: 1859 [2024-11-19 00:34:03,624 INFO L226 Difference]: Without dead ends: 1128 [2024-11-19 00:34:03,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 00:34:03,628 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 969 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:03,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 867 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 00:34:03,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-11-19 00:34:03,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 817. [2024-11-19 00:34:03,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 720 states have (on average 1.2319444444444445) internal successors, (887), 726 states have internal predecessors, (887), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 00:34:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1027 transitions. [2024-11-19 00:34:03,706 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1027 transitions. Word has length 139 [2024-11-19 00:34:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:03,706 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1027 transitions. [2024-11-19 00:34:03,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 19 states have internal predecessors, (57), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-19 00:34:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1027 transitions. [2024-11-19 00:34:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:34:03,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:03,708 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:03,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:34:03,709 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:03,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 82304827, now seen corresponding path program 1 times [2024-11-19 00:34:03,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:03,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648624548] [2024-11-19 00:34:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:03,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:04,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:04,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648624548] [2024-11-19 00:34:04,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648624548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:04,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:04,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:34:04,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569398316] [2024-11-19 00:34:04,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:04,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:34:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:04,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:34:04,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:34:04,675 INFO L87 Difference]: Start difference. First operand 817 states and 1027 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:05,455 INFO L93 Difference]: Finished difference Result 1887 states and 2361 transitions. [2024-11-19 00:34:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 00:34:05,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-11-19 00:34:05,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:05,462 INFO L225 Difference]: With dead ends: 1887 [2024-11-19 00:34:05,462 INFO L226 Difference]: Without dead ends: 1073 [2024-11-19 00:34:05,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:34:05,465 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 351 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:05,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 489 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:34:05,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-11-19 00:34:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 816. [2024-11-19 00:34:05,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 719 states have (on average 1.2308762169680112) internal successors, (885), 725 states have internal predecessors, (885), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 00:34:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1025 transitions. [2024-11-19 00:34:05,544 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1025 transitions. Word has length 139 [2024-11-19 00:34:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:05,545 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1025 transitions. [2024-11-19 00:34:05,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1025 transitions. [2024-11-19 00:34:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:34:05,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:05,547 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:05,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 00:34:05,547 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:05,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1346795056, now seen corresponding path program 1 times [2024-11-19 00:34:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:05,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461724206] [2024-11-19 00:34:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:05,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:05,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:05,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461724206] [2024-11-19 00:34:05,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461724206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:05,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:05,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:34:05,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347278233] [2024-11-19 00:34:05,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:05,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:34:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:05,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:34:05,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:34:05,846 INFO L87 Difference]: Start difference. First operand 816 states and 1025 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:34:06,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:06,137 INFO L93 Difference]: Finished difference Result 1798 states and 2254 transitions. [2024-11-19 00:34:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:34:06,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-11-19 00:34:06,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:06,144 INFO L225 Difference]: With dead ends: 1798 [2024-11-19 00:34:06,145 INFO L226 Difference]: Without dead ends: 985 [2024-11-19 00:34:06,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:34:06,147 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 55 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:06,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 847 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:34:06,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-19 00:34:06,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 856. [2024-11-19 00:34:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 759 states have (on average 1.2371541501976284) internal successors, (939), 765 states have internal predecessors, (939), 70 states have call successors, (70), 26 states have call predecessors, (70), 26 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 00:34:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1079 transitions. [2024-11-19 00:34:06,258 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1079 transitions. Word has length 139 [2024-11-19 00:34:06,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:06,260 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1079 transitions. [2024-11-19 00:34:06,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:34:06,261 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1079 transitions. [2024-11-19 00:34:06,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:34:06,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:06,263 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:06,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 00:34:06,264 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:06,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:06,265 INFO L85 PathProgramCache]: Analyzing trace with hash 850117294, now seen corresponding path program 1 times [2024-11-19 00:34:06,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:06,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825497172] [2024-11-19 00:34:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:06,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:07,216 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:07,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:07,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825497172] [2024-11-19 00:34:07,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825497172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:07,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:07,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:34:07,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187011482] [2024-11-19 00:34:07,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:07,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:34:07,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:07,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:34:07,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:34:07,218 INFO L87 Difference]: Start difference. First operand 856 states and 1079 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:07,699 INFO L93 Difference]: Finished difference Result 1772 states and 2225 transitions. [2024-11-19 00:34:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:34:07,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-19 00:34:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:07,706 INFO L225 Difference]: With dead ends: 1772 [2024-11-19 00:34:07,706 INFO L226 Difference]: Without dead ends: 919 [2024-11-19 00:34:07,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:34:07,708 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 135 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:07,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 305 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:34:07,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-19 00:34:07,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 787. [2024-11-19 00:34:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 700 states have (on average 1.2314285714285715) internal successors, (862), 704 states have internal predecessors, (862), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 58 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-19 00:34:07,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 986 transitions. [2024-11-19 00:34:07,792 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 986 transitions. Word has length 140 [2024-11-19 00:34:07,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:07,792 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 986 transitions. [2024-11-19 00:34:07,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 986 transitions. [2024-11-19 00:34:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 00:34:07,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:07,795 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:07,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 00:34:07,795 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:07,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1684666373, now seen corresponding path program 1 times [2024-11-19 00:34:07,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:07,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666466844] [2024-11-19 00:34:07,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:07,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:08,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666466844] [2024-11-19 00:34:08,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666466844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:08,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:08,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:34:08,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659105779] [2024-11-19 00:34:08,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:08,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:34:08,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:08,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:34:08,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:34:08,261 INFO L87 Difference]: Start difference. First operand 787 states and 986 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:08,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:08,565 INFO L93 Difference]: Finished difference Result 1263 states and 1541 transitions. [2024-11-19 00:34:08,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:34:08,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-19 00:34:08,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:08,571 INFO L225 Difference]: With dead ends: 1263 [2024-11-19 00:34:08,572 INFO L226 Difference]: Without dead ends: 1261 [2024-11-19 00:34:08,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:34:08,573 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 68 mSDsluCounter, 864 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:08,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1025 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:34:08,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-19 00:34:08,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1257. [2024-11-19 00:34:08,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1094 states have (on average 1.1910420475319927) internal successors, (1303), 1104 states have internal predecessors, (1303), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-19 00:34:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1531 transitions. [2024-11-19 00:34:08,714 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1531 transitions. Word has length 141 [2024-11-19 00:34:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:08,715 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1531 transitions. [2024-11-19 00:34:08,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:08,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1531 transitions. [2024-11-19 00:34:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 00:34:08,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:08,718 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:08,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 00:34:08,718 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:08,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1037781860, now seen corresponding path program 1 times [2024-11-19 00:34:08,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:08,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387494857] [2024-11-19 00:34:08,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:08,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:09,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:09,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387494857] [2024-11-19 00:34:09,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387494857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:09,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:09,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:34:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996100768] [2024-11-19 00:34:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:09,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:34:09,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:09,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:34:09,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:34:09,019 INFO L87 Difference]: Start difference. First operand 1257 states and 1531 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:09,261 INFO L93 Difference]: Finished difference Result 2767 states and 3367 transitions. [2024-11-19 00:34:09,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:34:09,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-19 00:34:09,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:09,268 INFO L225 Difference]: With dead ends: 2767 [2024-11-19 00:34:09,269 INFO L226 Difference]: Without dead ends: 1513 [2024-11-19 00:34:09,271 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 [2024-11-19 00:34:09,271 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 46 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:09,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 704 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:34:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-11-19 00:34:09,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1403. [2024-11-19 00:34:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1240 states have (on average 1.1870967741935483) internal successors, (1472), 1250 states have internal predecessors, (1472), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-19 00:34:09,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1700 transitions. [2024-11-19 00:34:09,421 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1700 transitions. Word has length 141 [2024-11-19 00:34:09,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:09,421 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1700 transitions. [2024-11-19 00:34:09,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:09,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1700 transitions. [2024-11-19 00:34:09,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 00:34:09,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:09,424 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:09,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 00:34:09,425 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:09,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash 339047129, now seen corresponding path program 1 times [2024-11-19 00:34:09,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:09,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482874276] [2024-11-19 00:34:09,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:09,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:10,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:10,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482874276] [2024-11-19 00:34:10,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482874276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:10,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:10,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:34:10,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499736864] [2024-11-19 00:34:10,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:10,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:34:10,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:10,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:34:10,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:34:10,135 INFO L87 Difference]: Start difference. First operand 1403 states and 1700 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:34:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:10,747 INFO L93 Difference]: Finished difference Result 2996 states and 3604 transitions. [2024-11-19 00:34:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:34:10,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-19 00:34:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:10,755 INFO L225 Difference]: With dead ends: 2996 [2024-11-19 00:34:10,755 INFO L226 Difference]: Without dead ends: 1596 [2024-11-19 00:34:10,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:34:10,757 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 48 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:10,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 473 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:34:10,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-19 00:34:10,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1322. [2024-11-19 00:34:10,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1159 states have (on average 1.1544434857635892) internal successors, (1338), 1169 states have internal predecessors, (1338), 114 states have call successors, (114), 48 states have call predecessors, (114), 48 states have return successors, (114), 104 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-19 00:34:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1566 transitions. [2024-11-19 00:34:10,908 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1566 transitions. Word has length 142 [2024-11-19 00:34:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:10,909 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1566 transitions. [2024-11-19 00:34:10,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:34:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1566 transitions. [2024-11-19 00:34:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 00:34:10,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:10,911 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:10,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 00:34:10,911 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:10,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:10,912 INFO L85 PathProgramCache]: Analyzing trace with hash -840470491, now seen corresponding path program 1 times [2024-11-19 00:34:10,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:10,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454049522] [2024-11-19 00:34:10,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:10,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:11,189 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:11,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:11,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454049522] [2024-11-19 00:34:11,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454049522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:11,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:11,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:34:11,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272622094] [2024-11-19 00:34:11,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:11,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:34:11,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:11,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:34:11,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:34:11,192 INFO L87 Difference]: Start difference. First operand 1322 states and 1566 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:11,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:11,393 INFO L93 Difference]: Finished difference Result 2304 states and 2745 transitions. [2024-11-19 00:34:11,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:34:11,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-19 00:34:11,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:11,398 INFO L225 Difference]: With dead ends: 2304 [2024-11-19 00:34:11,399 INFO L226 Difference]: Without dead ends: 941 [2024-11-19 00:34:11,401 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 [2024-11-19 00:34:11,402 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 113 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:11,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 455 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:34:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2024-11-19 00:34:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 939. [2024-11-19 00:34:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 796 states have (on average 1.1457286432160805) internal successors, (912), 804 states have internal predecessors, (912), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 00:34:11,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1112 transitions. [2024-11-19 00:34:11,529 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1112 transitions. Word has length 142 [2024-11-19 00:34:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:11,530 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1112 transitions. [2024-11-19 00:34:11,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:11,530 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1112 transitions. [2024-11-19 00:34:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 00:34:11,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:11,532 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:11,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 00:34:11,532 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:11,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash -996369262, now seen corresponding path program 1 times [2024-11-19 00:34:11,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:11,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270286071] [2024-11-19 00:34:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:11,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:11,784 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:11,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:11,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270286071] [2024-11-19 00:34:11,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270286071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:11,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:11,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:34:11,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211056909] [2024-11-19 00:34:11,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:11,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:34:11,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:11,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:34:11,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:34:11,786 INFO L87 Difference]: Start difference. First operand 939 states and 1112 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:11,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:11,972 INFO L93 Difference]: Finished difference Result 1773 states and 2095 transitions. [2024-11-19 00:34:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:34:11,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-19 00:34:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:11,978 INFO L225 Difference]: With dead ends: 1773 [2024-11-19 00:34:11,978 INFO L226 Difference]: Without dead ends: 870 [2024-11-19 00:34:11,979 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 [2024-11-19 00:34:11,980 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 65 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:11,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 680 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:34:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-19 00:34:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 864. [2024-11-19 00:34:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 721 states have (on average 1.130374479889043) internal successors, (815), 729 states have internal predecessors, (815), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 00:34:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1015 transitions. [2024-11-19 00:34:12,107 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1015 transitions. Word has length 143 [2024-11-19 00:34:12,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:12,108 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1015 transitions. [2024-11-19 00:34:12,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:12,108 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1015 transitions. [2024-11-19 00:34:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:34:12,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:12,110 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:12,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 00:34:12,110 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:12,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:12,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1560829808, now seen corresponding path program 1 times [2024-11-19 00:34:12,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:12,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135552298] [2024-11-19 00:34:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:12,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:12,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:12,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135552298] [2024-11-19 00:34:12,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135552298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:12,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:12,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:34:12,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222770745] [2024-11-19 00:34:12,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:12,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:34:12,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:12,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:34:12,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:34:12,414 INFO L87 Difference]: Start difference. First operand 864 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:12,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:12,608 INFO L93 Difference]: Finished difference Result 1650 states and 1930 transitions. [2024-11-19 00:34:12,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:34:12,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2024-11-19 00:34:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:12,614 INFO L225 Difference]: With dead ends: 1650 [2024-11-19 00:34:12,614 INFO L226 Difference]: Without dead ends: 822 [2024-11-19 00:34:12,616 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 [2024-11-19 00:34:12,617 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 65 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:12,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 444 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:34:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-19 00:34:12,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2024-11-19 00:34:12,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 679 states have (on average 1.1030927835051547) internal successors, (749), 687 states have internal predecessors, (749), 100 states have call successors, (100), 42 states have call predecessors, (100), 42 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 00:34:12,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 949 transitions. [2024-11-19 00:34:12,743 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 949 transitions. Word has length 144 [2024-11-19 00:34:12,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:12,743 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 949 transitions. [2024-11-19 00:34:12,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 00:34:12,743 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 949 transitions. [2024-11-19 00:34:12,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:34:12,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:12,745 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:12,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 00:34:12,745 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:12,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:12,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1027029127, now seen corresponding path program 1 times [2024-11-19 00:34:12,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:12,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051624114] [2024-11-19 00:34:12,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:12,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:13,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:13,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051624114] [2024-11-19 00:34:13,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051624114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:13,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:13,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:34:13,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398185406] [2024-11-19 00:34:13,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:13,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:34:13,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:13,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:34:13,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:34:13,753 INFO L87 Difference]: Start difference. First operand 822 states and 949 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:34:14,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:14,166 INFO L93 Difference]: Finished difference Result 1067 states and 1233 transitions. [2024-11-19 00:34:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:34:14,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-19 00:34:14,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:14,172 INFO L225 Difference]: With dead ends: 1067 [2024-11-19 00:34:14,172 INFO L226 Difference]: Without dead ends: 1065 [2024-11-19 00:34:14,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:34:14,173 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 66 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:14,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1420 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:34:14,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-19 00:34:14,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1061. [2024-11-19 00:34:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 874 states have (on average 1.105263157894737) internal successors, (966), 885 states have internal predecessors, (966), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-19 00:34:14,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1226 transitions. [2024-11-19 00:34:14,346 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1226 transitions. Word has length 144 [2024-11-19 00:34:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:14,346 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1226 transitions. [2024-11-19 00:34:14,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 10 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:34:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1226 transitions. [2024-11-19 00:34:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:34:14,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:14,348 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:14,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 00:34:14,349 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:14,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash 747978235, now seen corresponding path program 1 times [2024-11-19 00:34:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:14,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057848727] [2024-11-19 00:34:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:14,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:17,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:17,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057848727] [2024-11-19 00:34:17,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057848727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:17,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:17,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 00:34:17,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170755613] [2024-11-19 00:34:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:17,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 00:34:17,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 00:34:17,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:34:17,155 INFO L87 Difference]: Start difference. First operand 1061 states and 1226 transitions. Second operand has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:34:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:20,222 INFO L93 Difference]: Finished difference Result 2327 states and 2692 transitions. [2024-11-19 00:34:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:34:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-19 00:34:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:20,229 INFO L225 Difference]: With dead ends: 2327 [2024-11-19 00:34:20,229 INFO L226 Difference]: Without dead ends: 1302 [2024-11-19 00:34:20,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:34:20,232 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 182 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:20,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1169 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 00:34:20,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-11-19 00:34:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1149. [2024-11-19 00:34:20,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 962 states have (on average 1.1143451143451144) internal successors, (1072), 973 states have internal predecessors, (1072), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-19 00:34:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1332 transitions. [2024-11-19 00:34:20,433 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1332 transitions. Word has length 144 [2024-11-19 00:34:20,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:20,434 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1332 transitions. [2024-11-19 00:34:20,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.166666666666667) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 00:34:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1332 transitions. [2024-11-19 00:34:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:34:20,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:20,436 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:20,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 00:34:20,436 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:20,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:20,437 INFO L85 PathProgramCache]: Analyzing trace with hash -61368391, now seen corresponding path program 1 times [2024-11-19 00:34:20,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:20,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669014734] [2024-11-19 00:34:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:20,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:20,655 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 00:34:20,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:34:20,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669014734] [2024-11-19 00:34:20,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669014734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:34:20,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:34:20,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:34:20,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815637281] [2024-11-19 00:34:20,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:34:20,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:34:20,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:34:20,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:34:20,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:34:20,657 INFO L87 Difference]: Start difference. First operand 1149 states and 1332 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:34:21,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:34:21,077 INFO L93 Difference]: Finished difference Result 2880 states and 3301 transitions. [2024-11-19 00:34:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:34:21,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-19 00:34:21,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:34:21,090 INFO L225 Difference]: With dead ends: 2880 [2024-11-19 00:34:21,090 INFO L226 Difference]: Without dead ends: 1767 [2024-11-19 00:34:21,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:34:21,096 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 48 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:34:21,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 369 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:34:21,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-19 00:34:21,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1227. [2024-11-19 00:34:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1040 states have (on average 1.1134615384615385) internal successors, (1158), 1051 states have internal predecessors, (1158), 130 states have call successors, (130), 56 states have call predecessors, (130), 56 states have return successors, (130), 119 states have call predecessors, (130), 130 states have call successors, (130) [2024-11-19 00:34:21,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1418 transitions. [2024-11-19 00:34:21,301 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1418 transitions. Word has length 144 [2024-11-19 00:34:21,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:34:21,302 INFO L471 AbstractCegarLoop]: Abstraction has 1227 states and 1418 transitions. [2024-11-19 00:34:21,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 00:34:21,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1418 transitions. [2024-11-19 00:34:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 00:34:21,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:34:21,305 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:34:21,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 00:34:21,305 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:34:21,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:34:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash -886480517, now seen corresponding path program 1 times [2024-11-19 00:34:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:34:21,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355488074] [2024-11-19 00:34:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:34:21,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:34:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:34:27,680 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete