./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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-ap_file-56.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 10471332ed8d2599b04e210a8f5e1cfca6044f5eaf06c2a8c3075acc10d9721c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:24:47,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:24:47,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:24:47,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:24:47,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:24:47,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:24:47,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:24:47,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:24:47,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:24:47,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:24:47,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:24:47,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:24:47,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:24:47,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:24:47,226 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:24:47,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:24:47,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:24:47,227 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:24:47,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:24:47,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:24:47,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:24:47,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:24:47,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:24:47,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:24:47,232 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:24:47,232 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:24:47,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:24:47,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:24:47,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:24:47,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:24:47,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:24:47,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:24:47,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:24:47,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:24:47,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:24:47,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:24:47,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:24:47,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:24:47,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:24:47,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:24:47,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:24:47,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:24:47,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10471332ed8d2599b04e210a8f5e1cfca6044f5eaf06c2a8c3075acc10d9721c [2024-11-16 18:24:47,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:24:47,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:24:47,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:24:47,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:24:47,543 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:24:47,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-56.i [2024-11-16 18:24:49,054 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:24:49,262 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:24:49,263 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-56.i [2024-11-16 18:24:49,272 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05534089b/1e69ee474b1e4957a2e83827ab1cdea2/FLAGa97984014 [2024-11-16 18:24:49,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05534089b/1e69ee474b1e4957a2e83827ab1cdea2 [2024-11-16 18:24:49,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:24:49,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:24:49,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:24:49,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:24:49,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:24:49,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ac241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49, skipping insertion in model container [2024-11-16 18:24:49,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:24:49,517 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-ap_file-56.i[917,930] [2024-11-16 18:24:49,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:24:49,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:24:49,622 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-ap_file-56.i[917,930] [2024-11-16 18:24:49,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:24:49,682 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:24:49,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49 WrapperNode [2024-11-16 18:24:49,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:24:49,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:24:49,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:24:49,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:24:49,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,754 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 588 [2024-11-16 18:24:49,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:24:49,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:24:49,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:24:49,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:24:49,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,772 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,795 INFO L175 MemorySlicer]: Split 147 memory accesses to 5 slices as follows [2, 41, 11, 16, 77]. 52 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 5, 2, 1, 6]. The 18 writes are split as follows [0, 8, 2, 1, 7]. [2024-11-16 18:24:49,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,819 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:24:49,836 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:24:49,836 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:24:49,836 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:24:49,837 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (1/1) ... [2024-11-16 18:24:49,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:24:49,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:24:49,878 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) [2024-11-16 18:24:49,884 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 [2024-11-16 18:24:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:24:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-16 18:24:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-16 18:24:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-16 18:24:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-16 18:24:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-16 18:24:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-16 18:24:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:24:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:24:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:24:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:24:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:24:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-16 18:24:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-16 18:24:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-16 18:24:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-16 18:24:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-16 18:24:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:24:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:24:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:24:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:24:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:24:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:24:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:24:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:24:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:24:50,096 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:24:50,098 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:24:50,683 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L118: havoc property_#t~mem90#1;havoc property_#t~bitwise91#1;havoc property_#t~ite119#1;havoc property_#t~mem107#1;havoc property_#t~mem98#1;havoc property_#t~mem97#1;havoc property_#t~mem92#1;havoc property_#t~mem93#1;havoc property_#t~ite96#1;havoc property_#t~mem94#1;havoc property_#t~mem95#1;havoc property_#t~ite106#1;havoc property_#t~mem99#1;havoc property_#t~mem105#1;havoc property_#t~mem100#1;havoc property_#t~mem101#1;havoc property_#t~ite104#1;havoc property_#t~mem102#1;havoc property_#t~mem103#1;havoc property_#t~mem118#1;havoc property_#t~mem108#1;havoc property_#t~mem109#1;havoc property_#t~ite112#1;havoc property_#t~mem110#1;havoc property_#t~mem111#1;havoc property_#t~mem113#1;havoc property_#t~mem114#1;havoc property_#t~ite117#1;havoc property_#t~mem115#1;havoc property_#t~mem116#1;havoc property_#t~mem120#1;havoc property_#t~ite130#1;havoc property_#t~mem121#1;havoc property_#t~mem122#1;havoc property_#t~short123#1;havoc property_#t~ite129#1;havoc property_#t~mem124#1;havoc property_#t~mem125#1;havoc property_#t~ite128#1;havoc property_#t~mem127#1;havoc property_#t~mem126#1;havoc property_#t~short131#1;havoc property_#t~mem132#1;havoc property_#t~mem133#1;havoc property_#t~mem134#1;havoc property_#t~ite137#1;havoc property_#t~mem136#1;havoc property_#t~mem135#1;havoc property_#t~short138#1;havoc property_#t~mem139#1;havoc property_#t~mem140#1;havoc property_#t~short141#1;havoc property_#t~ite157#1;havoc property_#t~mem145#1;havoc property_#t~mem142#1;havoc property_#t~mem143#1;havoc property_#t~bitwise144#1;havoc property_#t~ite154#1;havoc property_#t~mem146#1;havoc property_#t~mem147#1;havoc property_#t~ite151#1;havoc property_#t~mem149#1;havoc property_#t~mem148#1;havoc property_#t~mem150#1;havoc property_#t~mem153#1;havoc property_#t~mem152#1;havoc property_#t~mem156#1;havoc property_#t~mem155#1;havoc property_#t~short158#1; [2024-11-16 18:24:50,739 INFO L? ?]: Removed 158 outVars from TransFormulas that were not future-live. [2024-11-16 18:24:50,739 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:24:50,769 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:24:50,769 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:24:50,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:24:50 BoogieIcfgContainer [2024-11-16 18:24:50,771 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:24:50,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:24:50,773 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:24:50,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:24:50,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:24:49" (1/3) ... [2024-11-16 18:24:50,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76131400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:24:50, skipping insertion in model container [2024-11-16 18:24:50,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:24:49" (2/3) ... [2024-11-16 18:24:50,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76131400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:24:50, skipping insertion in model container [2024-11-16 18:24:50,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:24:50" (3/3) ... [2024-11-16 18:24:50,782 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-56.i [2024-11-16 18:24:50,798 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:24:50,799 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:24:50,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:24:50,870 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;@7f1dde5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:24:50,870 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:24:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 107 states have (on average 1.4205607476635513) internal successors, (152), 108 states have internal predecessors, (152), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 18:24:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 18:24:50,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:50,888 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:50,889 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:50,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash -176812729, now seen corresponding path program 1 times [2024-11-16 18:24:50,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:50,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470218674] [2024-11-16 18:24:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:50,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:51,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:51,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470218674] [2024-11-16 18:24:51,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470218674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:51,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:51,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:24:51,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721265368] [2024-11-16 18:24:51,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:51,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:24:51,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:51,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:24:51,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:24:51,389 INFO L87 Difference]: Start difference. First operand has 129 states, 107 states have (on average 1.4205607476635513) internal successors, (152), 108 states have internal predecessors, (152), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:24:51,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:24:51,429 INFO L93 Difference]: Finished difference Result 250 states and 392 transitions. [2024-11-16 18:24:51,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:24:51,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2024-11-16 18:24:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:24:51,444 INFO L225 Difference]: With dead ends: 250 [2024-11-16 18:24:51,444 INFO L226 Difference]: Without dead ends: 124 [2024-11-16 18:24:51,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:24:51,455 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:24:51,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:24:51,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-16 18:24:51,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-16 18:24:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 103 states have (on average 1.3980582524271845) internal successors, (144), 103 states have internal predecessors, (144), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 18:24:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 182 transitions. [2024-11-16 18:24:51,508 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 182 transitions. Word has length 153 [2024-11-16 18:24:51,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:24:51,508 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 182 transitions. [2024-11-16 18:24:51,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:24:51,509 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2024-11-16 18:24:51,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 18:24:51,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:51,513 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:51,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:24:51,514 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:51,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:51,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1169390820, now seen corresponding path program 1 times [2024-11-16 18:24:51,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:51,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190299560] [2024-11-16 18:24:51,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:51,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:53,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:53,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190299560] [2024-11-16 18:24:53,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190299560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:53,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:53,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:24:53,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868235373] [2024-11-16 18:24:53,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:53,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:24:53,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:53,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:24:53,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:24:53,574 INFO L87 Difference]: Start difference. First operand 124 states and 182 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:54,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:24:54,785 INFO L93 Difference]: Finished difference Result 506 states and 746 transitions. [2024-11-16 18:24:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 18:24:54,786 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-11-16 18:24:54,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:24:54,794 INFO L225 Difference]: With dead ends: 506 [2024-11-16 18:24:54,794 INFO L226 Difference]: Without dead ends: 385 [2024-11-16 18:24:54,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-11-16 18:24:54,799 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 505 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 18:24:54,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1577 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 18:24:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-16 18:24:54,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 207. [2024-11-16 18:24:54,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 165 states have internal predecessors, (227), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 18:24:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 303 transitions. [2024-11-16 18:24:54,839 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 303 transitions. Word has length 153 [2024-11-16 18:24:54,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:24:54,842 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 303 transitions. [2024-11-16 18:24:54,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:54,842 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 303 transitions. [2024-11-16 18:24:54,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 18:24:54,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:54,847 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:54,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:24:54,848 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:54,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:54,849 INFO L85 PathProgramCache]: Analyzing trace with hash 163203319, now seen corresponding path program 1 times [2024-11-16 18:24:54,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:54,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419289613] [2024-11-16 18:24:54,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:54,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:54,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,007 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419289613] [2024-11-16 18:24:55,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419289613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:55,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:55,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:24:55,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020334675] [2024-11-16 18:24:55,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:55,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:24:55,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:55,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:24:55,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:24:55,010 INFO L87 Difference]: Start difference. First operand 207 states and 303 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:24:55,046 INFO L93 Difference]: Finished difference Result 329 states and 484 transitions. [2024-11-16 18:24:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:24:55,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-16 18:24:55,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:24:55,049 INFO L225 Difference]: With dead ends: 329 [2024-11-16 18:24:55,049 INFO L226 Difference]: Without dead ends: 208 [2024-11-16 18:24:55,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:24:55,054 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:24:55,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:24:55,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-16 18:24:55,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-16 18:24:55,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 166 states have (on average 1.3674698795180722) internal successors, (227), 166 states have internal predecessors, (227), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 18:24:55,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 303 transitions. [2024-11-16 18:24:55,082 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 303 transitions. Word has length 154 [2024-11-16 18:24:55,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:24:55,083 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 303 transitions. [2024-11-16 18:24:55,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,083 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 303 transitions. [2024-11-16 18:24:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 18:24:55,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:55,085 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:55,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:24:55,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:55,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:55,087 INFO L85 PathProgramCache]: Analyzing trace with hash -204365700, now seen corresponding path program 1 times [2024-11-16 18:24:55,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:55,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493648800] [2024-11-16 18:24:55,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:55,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,278 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:55,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:55,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493648800] [2024-11-16 18:24:55,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493648800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:55,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:55,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:24:55,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103452368] [2024-11-16 18:24:55,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:55,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:24:55,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:55,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:24:55,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:24:55,283 INFO L87 Difference]: Start difference. First operand 208 states and 303 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:24:55,320 INFO L93 Difference]: Finished difference Result 332 states and 487 transitions. [2024-11-16 18:24:55,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:24:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-16 18:24:55,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:24:55,325 INFO L225 Difference]: With dead ends: 332 [2024-11-16 18:24:55,326 INFO L226 Difference]: Without dead ends: 210 [2024-11-16 18:24:55,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:24:55,329 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:24:55,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:24:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-16 18:24:55,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-16 18:24:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 168 states have (on average 1.3630952380952381) internal successors, (229), 168 states have internal predecessors, (229), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 18:24:55,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 305 transitions. [2024-11-16 18:24:55,356 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 305 transitions. Word has length 154 [2024-11-16 18:24:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:24:55,358 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 305 transitions. [2024-11-16 18:24:55,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 305 transitions. [2024-11-16 18:24:55,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 18:24:55,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:55,362 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:55,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:24:55,362 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:55,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1779218376, now seen corresponding path program 1 times [2024-11-16 18:24:55,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:55,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118855692] [2024-11-16 18:24:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:55,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:55,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:55,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118855692] [2024-11-16 18:24:55,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118855692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:55,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:55,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:24:55,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608880105] [2024-11-16 18:24:55,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:55,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:24:55,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:55,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:24:55,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:24:55,555 INFO L87 Difference]: Start difference. First operand 210 states and 305 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:24:55,591 INFO L93 Difference]: Finished difference Result 333 states and 486 transitions. [2024-11-16 18:24:55,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:24:55,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-16 18:24:55,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:24:55,595 INFO L225 Difference]: With dead ends: 333 [2024-11-16 18:24:55,595 INFO L226 Difference]: Without dead ends: 210 [2024-11-16 18:24:55,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:24:55,600 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:24:55,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 343 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:24:55,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-16 18:24:55,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-16 18:24:55,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 168 states have (on average 1.3571428571428572) internal successors, (228), 168 states have internal predecessors, (228), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 18:24:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 304 transitions. [2024-11-16 18:24:55,618 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 304 transitions. Word has length 154 [2024-11-16 18:24:55,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:24:55,619 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 304 transitions. [2024-11-16 18:24:55,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 304 transitions. [2024-11-16 18:24:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:24:55,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:55,622 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:55,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:24:55,623 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:55,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:55,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1325967121, now seen corresponding path program 1 times [2024-11-16 18:24:55,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:55,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053331779] [2024-11-16 18:24:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:55,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:55,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:55,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053331779] [2024-11-16 18:24:55,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053331779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:55,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:55,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:24:55,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149503189] [2024-11-16 18:24:55,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:55,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:24:55,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:55,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:24:55,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:24:55,906 INFO L87 Difference]: Start difference. First operand 210 states and 304 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:24:55,956 INFO L93 Difference]: Finished difference Result 336 states and 488 transitions. [2024-11-16 18:24:55,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:24:55,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-16 18:24:55,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:24:55,959 INFO L225 Difference]: With dead ends: 336 [2024-11-16 18:24:55,961 INFO L226 Difference]: Without dead ends: 213 [2024-11-16 18:24:55,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:24:55,962 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:24:55,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 683 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:24:55,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-16 18:24:55,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-16 18:24:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 171 states have (on average 1.3508771929824561) internal successors, (231), 171 states have internal predecessors, (231), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-16 18:24:55,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 307 transitions. [2024-11-16 18:24:55,977 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 307 transitions. Word has length 155 [2024-11-16 18:24:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:24:55,978 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 307 transitions. [2024-11-16 18:24:55,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 307 transitions. [2024-11-16 18:24:55,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:24:55,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:55,980 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:55,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:24:55,980 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:55,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash -759445465, now seen corresponding path program 1 times [2024-11-16 18:24:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:55,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012867499] [2024-11-16 18:24:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:55,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:56,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:56,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012867499] [2024-11-16 18:24:56,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012867499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:56,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:56,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:24:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643202060] [2024-11-16 18:24:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:56,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:24:56,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:24:56,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:24:56,517 INFO L87 Difference]: Start difference. First operand 213 states and 307 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:56,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:24:56,728 INFO L93 Difference]: Finished difference Result 415 states and 595 transitions. [2024-11-16 18:24:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:24:56,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-16 18:24:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:24:56,730 INFO L225 Difference]: With dead ends: 415 [2024-11-16 18:24:56,731 INFO L226 Difference]: Without dead ends: 289 [2024-11-16 18:24:56,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:24:56,732 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 95 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:24:56,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 710 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:24:56,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-16 18:24:56,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 285. [2024-11-16 18:24:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 231 states have (on average 1.341991341991342) internal successors, (310), 232 states have internal predecessors, (310), 49 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-16 18:24:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 408 transitions. [2024-11-16 18:24:56,749 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 408 transitions. Word has length 155 [2024-11-16 18:24:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:24:56,750 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 408 transitions. [2024-11-16 18:24:56,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:24:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 408 transitions. [2024-11-16 18:24:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:24:56,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:24:56,752 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:24:56,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:24:56,753 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:24:56,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:24:56,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1265004090, now seen corresponding path program 1 times [2024-11-16 18:24:56,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:24:56,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438985215] [2024-11-16 18:24:56,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:24:56,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:24:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:24:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:24:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:24:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:24:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:24:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:24:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:24:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:24:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:24:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:24:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:24:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:24:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:24:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:24:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:24:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:24:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:24:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:24:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:24:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:24:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:24:59,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:24:59,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438985215] [2024-11-16 18:24:59,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438985215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:24:59,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:24:59,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:24:59,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716826108] [2024-11-16 18:24:59,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:24:59,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:24:59,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:24:59,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:24:59,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:24:59,179 INFO L87 Difference]: Start difference. First operand 285 states and 408 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:00,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:00,267 INFO L93 Difference]: Finished difference Result 666 states and 958 transitions. [2024-11-16 18:25:00,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:25:00,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-16 18:25:00,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:00,272 INFO L225 Difference]: With dead ends: 666 [2024-11-16 18:25:00,272 INFO L226 Difference]: Without dead ends: 472 [2024-11-16 18:25:00,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:25:00,274 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 350 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:00,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 782 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:25:00,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-16 18:25:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 467. [2024-11-16 18:25:00,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 393 states have (on average 1.3715012722646311) internal successors, (539), 396 states have internal predecessors, (539), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 673 transitions. [2024-11-16 18:25:00,328 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 673 transitions. Word has length 155 [2024-11-16 18:25:00,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:00,329 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 673 transitions. [2024-11-16 18:25:00,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 673 transitions. [2024-11-16 18:25:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:00,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:00,331 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:00,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:25:00,331 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:00,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:00,332 INFO L85 PathProgramCache]: Analyzing trace with hash -248911288, now seen corresponding path program 1 times [2024-11-16 18:25:00,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:00,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296392763] [2024-11-16 18:25:00,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:00,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:02,576 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:02,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:02,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296392763] [2024-11-16 18:25:02,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296392763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:02,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:02,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:25:02,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776386745] [2024-11-16 18:25:02,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:02,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:25:02,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:02,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:25:02,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:25:02,580 INFO L87 Difference]: Start difference. First operand 467 states and 673 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:03,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:03,795 INFO L93 Difference]: Finished difference Result 816 states and 1173 transitions. [2024-11-16 18:25:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:25:03,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-16 18:25:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:03,800 INFO L225 Difference]: With dead ends: 816 [2024-11-16 18:25:03,802 INFO L226 Difference]: Without dead ends: 470 [2024-11-16 18:25:03,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:25:03,804 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 660 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:03,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 861 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 18:25:03,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-16 18:25:03,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 465. [2024-11-16 18:25:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 391 states have (on average 1.3657289002557544) internal successors, (534), 394 states have internal predecessors, (534), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 668 transitions. [2024-11-16 18:25:03,867 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 668 transitions. Word has length 155 [2024-11-16 18:25:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:03,867 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 668 transitions. [2024-11-16 18:25:03,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 668 transitions. [2024-11-16 18:25:03,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:03,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:03,870 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:03,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:25:03,870 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:03,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:03,871 INFO L85 PathProgramCache]: Analyzing trace with hash 506196247, now seen corresponding path program 1 times [2024-11-16 18:25:03,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:03,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060347388] [2024-11-16 18:25:03,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:03,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:04,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:04,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060347388] [2024-11-16 18:25:04,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060347388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:04,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:04,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:25:04,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680190705] [2024-11-16 18:25:04,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:04,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:25:04,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:04,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:25:04,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:25:04,059 INFO L87 Difference]: Start difference. First operand 465 states and 668 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:04,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:04,192 INFO L93 Difference]: Finished difference Result 916 states and 1313 transitions. [2024-11-16 18:25:04,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:25:04,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-16 18:25:04,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:04,197 INFO L225 Difference]: With dead ends: 916 [2024-11-16 18:25:04,197 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 18:25:04,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:25:04,199 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 80 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:04,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 638 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:25:04,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 18:25:04,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 471. [2024-11-16 18:25:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 397 states have (on average 1.3652392947103276) internal successors, (542), 400 states have internal predecessors, (542), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 676 transitions. [2024-11-16 18:25:04,260 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 676 transitions. Word has length 155 [2024-11-16 18:25:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:04,260 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 676 transitions. [2024-11-16 18:25:04,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 676 transitions. [2024-11-16 18:25:04,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:04,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:04,262 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:04,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 18:25:04,262 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:04,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:04,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2026700799, now seen corresponding path program 1 times [2024-11-16 18:25:04,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:04,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593675686] [2024-11-16 18:25:04,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:04,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:05,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:05,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593675686] [2024-11-16 18:25:05,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593675686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:05,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:05,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:25:05,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696353908] [2024-11-16 18:25:05,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:05,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:25:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:05,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:25:05,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:25:05,787 INFO L87 Difference]: Start difference. First operand 471 states and 676 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:25:06,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:06,732 INFO L93 Difference]: Finished difference Result 979 states and 1405 transitions. [2024-11-16 18:25:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:25:06,733 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-16 18:25:06,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:06,737 INFO L225 Difference]: With dead ends: 979 [2024-11-16 18:25:06,737 INFO L226 Difference]: Without dead ends: 625 [2024-11-16 18:25:06,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:25:06,739 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 365 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:06,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 982 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:25:06,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-16 18:25:06,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 498. [2024-11-16 18:25:06,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 424 states have (on average 1.375) internal successors, (583), 427 states have internal predecessors, (583), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:06,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 717 transitions. [2024-11-16 18:25:06,797 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 717 transitions. Word has length 155 [2024-11-16 18:25:06,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:06,798 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 717 transitions. [2024-11-16 18:25:06,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:25:06,798 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 717 transitions. [2024-11-16 18:25:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:06,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:06,801 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:06,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 18:25:06,801 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:06,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:06,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1521142174, now seen corresponding path program 1 times [2024-11-16 18:25:06,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:06,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206909628] [2024-11-16 18:25:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:07,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:08,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:08,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206909628] [2024-11-16 18:25:08,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206909628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:08,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:08,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:25:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075677599] [2024-11-16 18:25:08,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:08,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:25:08,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:08,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:25:08,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:25:08,094 INFO L87 Difference]: Start difference. First operand 498 states and 717 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:08,971 INFO L93 Difference]: Finished difference Result 1006 states and 1445 transitions. [2024-11-16 18:25:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:25:08,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-16 18:25:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:08,984 INFO L225 Difference]: With dead ends: 1006 [2024-11-16 18:25:08,984 INFO L226 Difference]: Without dead ends: 625 [2024-11-16 18:25:08,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:25:08,986 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 349 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:08,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1160 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:25:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-16 18:25:09,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 498. [2024-11-16 18:25:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 424 states have (on average 1.3726415094339623) internal successors, (582), 427 states have internal predecessors, (582), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:09,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 716 transitions. [2024-11-16 18:25:09,042 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 716 transitions. Word has length 155 [2024-11-16 18:25:09,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:09,042 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 716 transitions. [2024-11-16 18:25:09,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:09,043 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 716 transitions. [2024-11-16 18:25:09,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:09,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:09,045 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:09,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:25:09,045 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:09,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:09,045 INFO L85 PathProgramCache]: Analyzing trace with hash -571902393, now seen corresponding path program 1 times [2024-11-16 18:25:09,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:09,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116029934] [2024-11-16 18:25:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:09,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:10,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:10,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116029934] [2024-11-16 18:25:10,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116029934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:10,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:10,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:25:10,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513813578] [2024-11-16 18:25:10,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:10,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:25:10,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:25:10,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:25:10,965 INFO L87 Difference]: Start difference. First operand 498 states and 716 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:12,101 INFO L93 Difference]: Finished difference Result 1029 states and 1480 transitions. [2024-11-16 18:25:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:25:12,102 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-16 18:25:12,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:12,107 INFO L225 Difference]: With dead ends: 1029 [2024-11-16 18:25:12,108 INFO L226 Difference]: Without dead ends: 648 [2024-11-16 18:25:12,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-16 18:25:12,110 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 631 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:12,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1079 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:25:12,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-16 18:25:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 511. [2024-11-16 18:25:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 437 states have (on average 1.3867276887871853) internal successors, (606), 440 states have internal predecessors, (606), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:12,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 740 transitions. [2024-11-16 18:25:12,169 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 740 transitions. Word has length 155 [2024-11-16 18:25:12,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:12,169 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 740 transitions. [2024-11-16 18:25:12,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:12,170 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 740 transitions. [2024-11-16 18:25:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:12,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:12,172 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:12,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:25:12,172 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:12,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:12,172 INFO L85 PathProgramCache]: Analyzing trace with hash 444190409, now seen corresponding path program 1 times [2024-11-16 18:25:12,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:12,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538363671] [2024-11-16 18:25:12,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:12,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:13,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:13,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538363671] [2024-11-16 18:25:13,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538363671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:13,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:13,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:25:13,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148464206] [2024-11-16 18:25:13,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:13,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:25:13,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:13,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:25:13,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:25:13,519 INFO L87 Difference]: Start difference. First operand 511 states and 740 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:25:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:14,475 INFO L93 Difference]: Finished difference Result 1039 states and 1499 transitions. [2024-11-16 18:25:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:25:14,476 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-11-16 18:25:14,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:14,480 INFO L225 Difference]: With dead ends: 1039 [2024-11-16 18:25:14,481 INFO L226 Difference]: Without dead ends: 638 [2024-11-16 18:25:14,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:25:14,484 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 294 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:14,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 903 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:25:14,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-16 18:25:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 471. [2024-11-16 18:25:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 397 states have (on average 1.3652392947103276) internal successors, (542), 400 states have internal predecessors, (542), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 676 transitions. [2024-11-16 18:25:14,545 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 676 transitions. Word has length 155 [2024-11-16 18:25:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:14,545 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 676 transitions. [2024-11-16 18:25:14,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:25:14,546 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 676 transitions. [2024-11-16 18:25:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:14,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:14,548 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:14,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 18:25:14,548 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:14,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1333599102, now seen corresponding path program 1 times [2024-11-16 18:25:14,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:14,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727994333] [2024-11-16 18:25:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:14,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:15,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:15,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727994333] [2024-11-16 18:25:15,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727994333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:15,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:15,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:25:15,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115645045] [2024-11-16 18:25:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:15,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:25:15,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:15,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:25:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:25:15,181 INFO L87 Difference]: Start difference. First operand 471 states and 676 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:15,514 INFO L93 Difference]: Finished difference Result 854 states and 1229 transitions. [2024-11-16 18:25:15,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:25:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2024-11-16 18:25:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:15,517 INFO L225 Difference]: With dead ends: 854 [2024-11-16 18:25:15,517 INFO L226 Difference]: Without dead ends: 473 [2024-11-16 18:25:15,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:25:15,519 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 143 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:15,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 587 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:25:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-16 18:25:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 471. [2024-11-16 18:25:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 397 states have (on average 1.36272040302267) internal successors, (541), 400 states have internal predecessors, (541), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 675 transitions. [2024-11-16 18:25:15,568 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 675 transitions. Word has length 155 [2024-11-16 18:25:15,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:15,569 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 675 transitions. [2024-11-16 18:25:15,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 675 transitions. [2024-11-16 18:25:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:15,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:15,570 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:15,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:25:15,570 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:15,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:15,571 INFO L85 PathProgramCache]: Analyzing trace with hash -371985085, now seen corresponding path program 1 times [2024-11-16 18:25:15,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:15,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391933484] [2024-11-16 18:25:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:17,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:17,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391933484] [2024-11-16 18:25:17,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391933484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:17,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:17,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:25:17,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770146992] [2024-11-16 18:25:17,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:17,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:25:17,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:17,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:25:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:25:17,325 INFO L87 Difference]: Start difference. First operand 471 states and 675 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:18,270 INFO L93 Difference]: Finished difference Result 987 states and 1413 transitions. [2024-11-16 18:25:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:25:18,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-16 18:25:18,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:18,276 INFO L225 Difference]: With dead ends: 987 [2024-11-16 18:25:18,277 INFO L226 Difference]: Without dead ends: 606 [2024-11-16 18:25:18,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:25:18,278 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 363 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:18,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1188 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:25:18,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-16 18:25:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 474. [2024-11-16 18:25:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 400 states have (on average 1.365) internal successors, (546), 403 states have internal predecessors, (546), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 680 transitions. [2024-11-16 18:25:18,354 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 680 transitions. Word has length 155 [2024-11-16 18:25:18,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:18,354 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 680 transitions. [2024-11-16 18:25:18,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 680 transitions. [2024-11-16 18:25:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:18,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:18,356 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:18,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 18:25:18,357 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:18,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:18,357 INFO L85 PathProgramCache]: Analyzing trace with hash 133573540, now seen corresponding path program 1 times [2024-11-16 18:25:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:18,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113354834] [2024-11-16 18:25:18,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:18,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:20,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:20,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113354834] [2024-11-16 18:25:20,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113354834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:20,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:20,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 18:25:20,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509098845] [2024-11-16 18:25:20,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:20,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 18:25:20,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:20,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 18:25:20,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:25:20,386 INFO L87 Difference]: Start difference. First operand 474 states and 680 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:21,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:21,596 INFO L93 Difference]: Finished difference Result 990 states and 1417 transitions. [2024-11-16 18:25:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:25:21,597 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2024-11-16 18:25:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:21,601 INFO L225 Difference]: With dead ends: 990 [2024-11-16 18:25:21,601 INFO L226 Difference]: Without dead ends: 606 [2024-11-16 18:25:21,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2024-11-16 18:25:21,606 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 451 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:21,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 1674 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 18:25:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-16 18:25:21,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 453. [2024-11-16 18:25:21,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 379 states have (on average 1.353562005277045) internal successors, (513), 382 states have internal predecessors, (513), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:21,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 647 transitions. [2024-11-16 18:25:21,659 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 647 transitions. Word has length 155 [2024-11-16 18:25:21,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:21,660 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 647 transitions. [2024-11-16 18:25:21,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:21,660 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 647 transitions. [2024-11-16 18:25:21,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 18:25:21,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:21,663 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:21,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:25:21,663 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:21,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1049368541, now seen corresponding path program 1 times [2024-11-16 18:25:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902779881] [2024-11-16 18:25:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:21,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:21,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:21,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902779881] [2024-11-16 18:25:21,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902779881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:21,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:21,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:25:21,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614857488] [2024-11-16 18:25:21,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:21,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:25:21,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:25:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:25:21,815 INFO L87 Difference]: Start difference. First operand 453 states and 647 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:21,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:21,943 INFO L93 Difference]: Finished difference Result 818 states and 1170 transitions. [2024-11-16 18:25:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:25:21,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-16 18:25:21,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:21,947 INFO L225 Difference]: With dead ends: 818 [2024-11-16 18:25:21,947 INFO L226 Difference]: Without dead ends: 455 [2024-11-16 18:25:21,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:25:21,949 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 83 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:21,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 786 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:25:21,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-16 18:25:22,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 452. [2024-11-16 18:25:22,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 378 states have (on average 1.3518518518518519) internal successors, (511), 381 states have internal predecessors, (511), 67 states have call successors, (67), 6 states have call predecessors, (67), 6 states have return successors, (67), 64 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-16 18:25:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 645 transitions. [2024-11-16 18:25:22,016 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 645 transitions. Word has length 155 [2024-11-16 18:25:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:22,016 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 645 transitions. [2024-11-16 18:25:22,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 645 transitions. [2024-11-16 18:25:22,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 18:25:22,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:22,018 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:22,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 18:25:22,019 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:22,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:22,020 INFO L85 PathProgramCache]: Analyzing trace with hash 991701386, now seen corresponding path program 1 times [2024-11-16 18:25:22,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:22,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863642341] [2024-11-16 18:25:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:22,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863642341] [2024-11-16 18:25:22,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863642341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:22,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:22,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 18:25:22,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491047905] [2024-11-16 18:25:22,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:22,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 18:25:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:22,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 18:25:22,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:25:22,108 INFO L87 Difference]: Start difference. First operand 452 states and 645 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:22,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:22,186 INFO L93 Difference]: Finished difference Result 749 states and 1070 transitions. [2024-11-16 18:25:22,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 18:25:22,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-16 18:25:22,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:22,190 INFO L225 Difference]: With dead ends: 749 [2024-11-16 18:25:22,190 INFO L226 Difference]: Without dead ends: 387 [2024-11-16 18:25:22,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 18:25:22,191 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:22,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:25:22,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-16 18:25:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-16 18:25:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 322 states have (on average 1.34472049689441) internal successors, (433), 324 states have internal predecessors, (433), 58 states have call successors, (58), 6 states have call predecessors, (58), 6 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-16 18:25:22,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 549 transitions. [2024-11-16 18:25:22,259 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 549 transitions. Word has length 156 [2024-11-16 18:25:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:22,259 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 549 transitions. [2024-11-16 18:25:22,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 549 transitions. [2024-11-16 18:25:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:22,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:22,261 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:22,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 18:25:22,261 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:22,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:22,262 INFO L85 PathProgramCache]: Analyzing trace with hash 790598257, now seen corresponding path program 1 times [2024-11-16 18:25:22,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:22,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635351090] [2024-11-16 18:25:22,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:22,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:24,262 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:24,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:24,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635351090] [2024-11-16 18:25:24,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635351090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:24,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:24,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-16 18:25:24,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747422048] [2024-11-16 18:25:24,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:24,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 18:25:24,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:24,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 18:25:24,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:25:24,266 INFO L87 Difference]: Start difference. First operand 387 states and 549 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:25,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:25,949 INFO L93 Difference]: Finished difference Result 1001 states and 1414 transitions. [2024-11-16 18:25:25,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:25:25,951 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 157 [2024-11-16 18:25:25,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:25,955 INFO L225 Difference]: With dead ends: 1001 [2024-11-16 18:25:25,955 INFO L226 Difference]: Without dead ends: 700 [2024-11-16 18:25:25,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-11-16 18:25:25,959 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 896 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:25,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 1434 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 18:25:25,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-16 18:25:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 410. [2024-11-16 18:25:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 344 states have (on average 1.3517441860465116) internal successors, (465), 346 states have internal predecessors, (465), 58 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-16 18:25:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 581 transitions. [2024-11-16 18:25:26,026 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 581 transitions. Word has length 157 [2024-11-16 18:25:26,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:26,026 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 581 transitions. [2024-11-16 18:25:26,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 581 transitions. [2024-11-16 18:25:26,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:26,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:26,028 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:26,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:25:26,029 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:26,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:26,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1787670610, now seen corresponding path program 1 times [2024-11-16 18:25:26,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:26,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717236597] [2024-11-16 18:25:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:26,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:27,638 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:27,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:27,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717236597] [2024-11-16 18:25:27,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717236597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:27,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:27,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:25:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118532745] [2024-11-16 18:25:27,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:27,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:25:27,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:27,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:25:27,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:25:27,641 INFO L87 Difference]: Start difference. First operand 410 states and 581 transitions. Second operand has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:28,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:28,817 INFO L93 Difference]: Finished difference Result 1125 states and 1586 transitions. [2024-11-16 18:25:28,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:25:28,819 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 157 [2024-11-16 18:25:28,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:28,823 INFO L225 Difference]: With dead ends: 1125 [2024-11-16 18:25:28,824 INFO L226 Difference]: Without dead ends: 828 [2024-11-16 18:25:28,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:25:28,825 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 923 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:28,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 1317 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:25:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-16 18:25:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 534. [2024-11-16 18:25:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 468 states have (on average 1.3888888888888888) internal successors, (650), 470 states have internal predecessors, (650), 58 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-16 18:25:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 766 transitions. [2024-11-16 18:25:28,891 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 766 transitions. Word has length 157 [2024-11-16 18:25:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:28,892 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 766 transitions. [2024-11-16 18:25:28,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.0) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 766 transitions. [2024-11-16 18:25:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:28,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:28,894 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:28,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:25:28,894 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:28,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1752212274, now seen corresponding path program 1 times [2024-11-16 18:25:28,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:28,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533913159] [2024-11-16 18:25:28,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:28,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:30,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:30,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533913159] [2024-11-16 18:25:30,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533913159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:30,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:30,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 18:25:30,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795976000] [2024-11-16 18:25:30,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:30,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 18:25:30,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:30,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 18:25:30,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:25:30,080 INFO L87 Difference]: Start difference. First operand 534 states and 766 transitions. Second operand has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:31,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:31,132 INFO L93 Difference]: Finished difference Result 1330 states and 1896 transitions. [2024-11-16 18:25:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 18:25:31,132 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2024-11-16 18:25:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:31,140 INFO L225 Difference]: With dead ends: 1330 [2024-11-16 18:25:31,140 INFO L226 Difference]: Without dead ends: 929 [2024-11-16 18:25:31,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:25:31,142 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 693 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:31,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1981 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:25:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-16 18:25:31,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 551. [2024-11-16 18:25:31,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 485 states have (on average 1.3855670103092783) internal successors, (672), 487 states have internal predecessors, (672), 58 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-16 18:25:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 788 transitions. [2024-11-16 18:25:31,217 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 788 transitions. Word has length 157 [2024-11-16 18:25:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:31,219 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 788 transitions. [2024-11-16 18:25:31,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.333333333333333) internal successors, (65), 16 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:31,220 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 788 transitions. [2024-11-16 18:25:31,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:31,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:31,221 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:31,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:25:31,221 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:31,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:31,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1807433309, now seen corresponding path program 1 times [2024-11-16 18:25:31,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:31,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426958724] [2024-11-16 18:25:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:31,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:32,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:32,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426958724] [2024-11-16 18:25:32,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426958724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:32,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:32,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:25:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585800874] [2024-11-16 18:25:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:32,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:25:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:32,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:25:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:25:32,616 INFO L87 Difference]: Start difference. First operand 551 states and 788 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:33,356 INFO L93 Difference]: Finished difference Result 1078 states and 1538 transitions. [2024-11-16 18:25:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:25:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 157 [2024-11-16 18:25:33,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:33,361 INFO L225 Difference]: With dead ends: 1078 [2024-11-16 18:25:33,362 INFO L226 Difference]: Without dead ends: 660 [2024-11-16 18:25:33,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:25:33,364 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 736 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:33,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 587 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:25:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-11-16 18:25:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 565. [2024-11-16 18:25:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 499 states have (on average 1.3847695390781563) internal successors, (691), 501 states have internal predecessors, (691), 58 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-16 18:25:33,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 807 transitions. [2024-11-16 18:25:33,459 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 807 transitions. Word has length 157 [2024-11-16 18:25:33,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:33,460 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 807 transitions. [2024-11-16 18:25:33,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:33,460 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 807 transitions. [2024-11-16 18:25:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:33,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:33,461 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:33,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 18:25:33,462 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:33,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:33,462 INFO L85 PathProgramCache]: Analyzing trace with hash -791340507, now seen corresponding path program 1 times [2024-11-16 18:25:33,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:33,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183641623] [2024-11-16 18:25:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:33,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:35,734 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:35,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:35,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183641623] [2024-11-16 18:25:35,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183641623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:35,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:35,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-16 18:25:35,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068524756] [2024-11-16 18:25:35,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:35,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 18:25:35,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 18:25:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2024-11-16 18:25:35,737 INFO L87 Difference]: Start difference. First operand 565 states and 807 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:37,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:37,579 INFO L93 Difference]: Finished difference Result 1106 states and 1577 transitions. [2024-11-16 18:25:37,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 18:25:37,579 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2024-11-16 18:25:37,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:37,583 INFO L225 Difference]: With dead ends: 1106 [2024-11-16 18:25:37,583 INFO L226 Difference]: Without dead ends: 707 [2024-11-16 18:25:37,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=183, Invalid=1077, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 18:25:37,586 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 266 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:37,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 2581 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 18:25:37,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-16 18:25:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 607. [2024-11-16 18:25:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 541 states have (on average 1.3937153419593347) internal successors, (754), 543 states have internal predecessors, (754), 58 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-16 18:25:37,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 870 transitions. [2024-11-16 18:25:37,663 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 870 transitions. Word has length 157 [2024-11-16 18:25:37,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:37,664 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 870 transitions. [2024-11-16 18:25:37,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:37,664 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 870 transitions. [2024-11-16 18:25:37,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:37,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:37,666 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:37,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 18:25:37,667 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:37,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:37,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1296899132, now seen corresponding path program 1 times [2024-11-16 18:25:37,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:37,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353333451] [2024-11-16 18:25:37,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:37,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:38,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:38,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353333451] [2024-11-16 18:25:38,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353333451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:25:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540203209] [2024-11-16 18:25:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:38,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:25:38,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:38,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:25:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:25:38,447 INFO L87 Difference]: Start difference. First operand 607 states and 870 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:25:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:39,019 INFO L93 Difference]: Finished difference Result 1160 states and 1649 transitions. [2024-11-16 18:25:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:25:39,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 157 [2024-11-16 18:25:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:39,024 INFO L225 Difference]: With dead ends: 1160 [2024-11-16 18:25:39,025 INFO L226 Difference]: Without dead ends: 713 [2024-11-16 18:25:39,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-16 18:25:39,026 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 704 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:39,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 742 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:25:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-16 18:25:39,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 535. [2024-11-16 18:25:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 479 states have (on average 1.3987473903966596) internal successors, (670), 480 states have internal predecessors, (670), 49 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-16 18:25:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 768 transitions. [2024-11-16 18:25:39,090 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 768 transitions. Word has length 157 [2024-11-16 18:25:39,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:39,090 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 768 transitions. [2024-11-16 18:25:39,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:25:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 768 transitions. [2024-11-16 18:25:39,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:39,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:39,092 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:39,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 18:25:39,092 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:39,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash -98238810, now seen corresponding path program 1 times [2024-11-16 18:25:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:39,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750956170] [2024-11-16 18:25:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:39,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:39,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:39,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750956170] [2024-11-16 18:25:39,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750956170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:39,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:39,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:25:39,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626635233] [2024-11-16 18:25:39,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:39,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:25:39,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:39,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:25:39,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:25:39,609 INFO L87 Difference]: Start difference. First operand 535 states and 768 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:40,030 INFO L93 Difference]: Finished difference Result 875 states and 1254 transitions. [2024-11-16 18:25:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:25:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 157 [2024-11-16 18:25:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:40,034 INFO L225 Difference]: With dead ends: 875 [2024-11-16 18:25:40,034 INFO L226 Difference]: Without dead ends: 496 [2024-11-16 18:25:40,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:25:40,036 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 181 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:40,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 575 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:25:40,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-16 18:25:40,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2024-11-16 18:25:40,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 440 states have (on average 1.3886363636363637) internal successors, (611), 441 states have internal predecessors, (611), 49 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-16 18:25:40,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 709 transitions. [2024-11-16 18:25:40,096 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 709 transitions. Word has length 157 [2024-11-16 18:25:40,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:40,097 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 709 transitions. [2024-11-16 18:25:40,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:40,097 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 709 transitions. [2024-11-16 18:25:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:40,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:40,098 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:40,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 18:25:40,099 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:40,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:40,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1141398194, now seen corresponding path program 1 times [2024-11-16 18:25:40,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:40,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030117644] [2024-11-16 18:25:40,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:40,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:40,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:40,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030117644] [2024-11-16 18:25:40,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030117644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:40,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:40,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:25:40,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234663140] [2024-11-16 18:25:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:40,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:25:40,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:25:40,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:25:40,622 INFO L87 Difference]: Start difference. First operand 496 states and 709 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:40,944 INFO L93 Difference]: Finished difference Result 1044 states and 1487 transitions. [2024-11-16 18:25:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:25:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 157 [2024-11-16 18:25:40,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:40,948 INFO L225 Difference]: With dead ends: 1044 [2024-11-16 18:25:40,948 INFO L226 Difference]: Without dead ends: 704 [2024-11-16 18:25:40,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:25:40,949 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 312 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:40,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 929 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:25:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-16 18:25:41,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 618. [2024-11-16 18:25:41,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 550 states have (on average 1.3981818181818182) internal successors, (769), 552 states have internal predecessors, (769), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 18:25:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 889 transitions. [2024-11-16 18:25:41,018 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 889 transitions. Word has length 157 [2024-11-16 18:25:41,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:41,019 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 889 transitions. [2024-11-16 18:25:41,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:25:41,019 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 889 transitions. [2024-11-16 18:25:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:41,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:41,021 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:41,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 18:25:41,021 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:41,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash -763531675, now seen corresponding path program 1 times [2024-11-16 18:25:41,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:41,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802924676] [2024-11-16 18:25:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:41,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:43,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:43,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802924676] [2024-11-16 18:25:43,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802924676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:43,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:43,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-16 18:25:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075289740] [2024-11-16 18:25:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:43,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 18:25:43,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 18:25:43,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2024-11-16 18:25:43,257 INFO L87 Difference]: Start difference. First operand 618 states and 889 transitions. Second operand has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:45,173 INFO L93 Difference]: Finished difference Result 1181 states and 1689 transitions. [2024-11-16 18:25:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 18:25:45,173 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2024-11-16 18:25:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:45,177 INFO L225 Difference]: With dead ends: 1181 [2024-11-16 18:25:45,177 INFO L226 Difference]: Without dead ends: 718 [2024-11-16 18:25:45,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=186, Invalid=1074, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 18:25:45,179 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 360 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:45,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 2617 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 18:25:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-16 18:25:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 618. [2024-11-16 18:25:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 550 states have (on average 1.3981818181818182) internal successors, (769), 552 states have internal predecessors, (769), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 18:25:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 889 transitions. [2024-11-16 18:25:45,255 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 889 transitions. Word has length 157 [2024-11-16 18:25:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:45,256 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 889 transitions. [2024-11-16 18:25:45,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0952380952380953) internal successors, (65), 22 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:45,256 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 889 transitions. [2024-11-16 18:25:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:45,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:45,257 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:45,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 18:25:45,258 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:45,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash 252561127, now seen corresponding path program 1 times [2024-11-16 18:25:45,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:45,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947715125] [2024-11-16 18:25:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:45,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:46,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:46,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947715125] [2024-11-16 18:25:46,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947715125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:46,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:46,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 18:25:46,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884029030] [2024-11-16 18:25:46,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:46,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 18:25:46,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:46,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 18:25:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:25:46,480 INFO L87 Difference]: Start difference. First operand 618 states and 889 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:47,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:47,187 INFO L93 Difference]: Finished difference Result 1213 states and 1729 transitions. [2024-11-16 18:25:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:25:47,187 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 157 [2024-11-16 18:25:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:47,191 INFO L225 Difference]: With dead ends: 1213 [2024-11-16 18:25:47,191 INFO L226 Difference]: Without dead ends: 732 [2024-11-16 18:25:47,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:25:47,193 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 437 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:47,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1039 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:25:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-16 18:25:47,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 612. [2024-11-16 18:25:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 544 states have (on average 1.3915441176470589) internal successors, (757), 546 states have internal predecessors, (757), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 18:25:47,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 877 transitions. [2024-11-16 18:25:47,266 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 877 transitions. Word has length 157 [2024-11-16 18:25:47,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:47,266 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 877 transitions. [2024-11-16 18:25:47,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-16 18:25:47,266 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 877 transitions. [2024-11-16 18:25:47,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:47,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:47,268 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:47,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 18:25:47,268 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:47,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:47,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1417770858, now seen corresponding path program 1 times [2024-11-16 18:25:47,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:47,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315782368] [2024-11-16 18:25:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:47,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:48,815 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:48,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:48,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315782368] [2024-11-16 18:25:48,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315782368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:48,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:48,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-16 18:25:48,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606465453] [2024-11-16 18:25:48,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:48,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 18:25:48,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:48,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 18:25:48,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-16 18:25:48,817 INFO L87 Difference]: Start difference. First operand 612 states and 877 transitions. Second operand has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:25:50,088 INFO L93 Difference]: Finished difference Result 1264 states and 1809 transitions. [2024-11-16 18:25:50,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 18:25:50,089 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 157 [2024-11-16 18:25:50,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:25:50,092 INFO L225 Difference]: With dead ends: 1264 [2024-11-16 18:25:50,092 INFO L226 Difference]: Without dead ends: 807 [2024-11-16 18:25:50,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2024-11-16 18:25:50,094 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 417 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:25:50,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 2243 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:25:50,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-16 18:25:50,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 680. [2024-11-16 18:25:50,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 612 states have (on average 1.4003267973856208) internal successors, (857), 614 states have internal predecessors, (857), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 18:25:50,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 977 transitions. [2024-11-16 18:25:50,164 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 977 transitions. Word has length 157 [2024-11-16 18:25:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:25:50,164 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 977 transitions. [2024-11-16 18:25:50,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 18:25:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 977 transitions. [2024-11-16 18:25:50,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 18:25:50,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:25:50,166 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:25:50,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 18:25:50,166 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:25:50,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:25:50,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1711173865, now seen corresponding path program 1 times [2024-11-16 18:25:50,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:25:50,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268552783] [2024-11-16 18:25:50,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:25:50,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:25:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:25:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:25:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:25:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:25:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:25:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:25:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:25:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:25:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 18:25:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 18:25:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 18:25:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 18:25:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 18:25:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 18:25:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:25:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:25:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 18:25:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 18:25:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 18:25:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:25:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:25:51,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:25:51,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268552783] [2024-11-16 18:25:51,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268552783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:25:51,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:25:51,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:25:51,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776496504] [2024-11-16 18:25:51,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:25:51,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:25:51,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:25:51,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:25:51,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:25:51,463 INFO L87 Difference]: Start difference. First operand 680 states and 977 transitions. Second operand has 12 states, 10 states have (on average 6.5) internal successors, (65), 12 states have internal predecessors, (65), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19)