./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.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 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 09:13:50,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 09:13:50,113 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 09:13:50,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 09:13:50,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 09:13:50,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 09:13:50,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 09:13:50,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 09:13:50,144 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 09:13:50,144 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 09:13:50,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 09:13:50,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 09:13:50,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 09:13:50,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 09:13:50,147 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 09:13:50,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 09:13:50,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 09:13:50,148 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 09:13:50,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 09:13:50,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 09:13:50,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 09:13:50,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 09:13:50,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 09:13:50,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 09:13:50,152 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 09:13:50,153 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 09:13:50,153 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 09:13:50,153 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 09:13:50,153 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 09:13:50,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 09:13:50,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 09:13:50,154 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 09:13:50,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 09:13:50,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 09:13:50,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 09:13:50,154 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 09:13:50,154 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 09:13:50,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 09:13:50,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 09:13:50,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 09:13:50,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 09:13:50,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 09:13:50,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b58d24144d549c81ae478cdbe56bd6625ad814c6ede850dce7ec3284e5d3039 [2024-11-10 09:13:50,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 09:13:50,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 09:13:50,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 09:13:50,386 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 09:13:50,387 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 09:13:50,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-10 09:13:51,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 09:13:52,079 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 09:13:52,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i [2024-11-10 09:13:52,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc918dcb4/0f35f9d794d04ed5a8403b8a0ed02696/FLAGc6535b52e [2024-11-10 09:13:52,109 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc918dcb4/0f35f9d794d04ed5a8403b8a0ed02696 [2024-11-10 09:13:52,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 09:13:52,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 09:13:52,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 09:13:52,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 09:13:52,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 09:13:52,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6942fd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52, skipping insertion in model container [2024-11-10 09:13:52,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 09:13:52,300 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-10 09:13:52,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 09:13:52,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 09:13:52,446 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-30.i[916,929] [2024-11-10 09:13:52,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 09:13:52,487 INFO L204 MainTranslator]: Completed translation [2024-11-10 09:13:52,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52 WrapperNode [2024-11-10 09:13:52,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 09:13:52,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 09:13:52,488 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 09:13:52,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 09:13:52,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,558 INFO L138 Inliner]: procedures = 29, calls = 172, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 523 [2024-11-10 09:13:52,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 09:13:52,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 09:13:52,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 09:13:52,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 09:13:52,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,602 INFO L175 MemorySlicer]: Split 139 memory accesses to 6 slices as follows [2, 8, 40, 10, 22, 57]. 41 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 5, 1, 2, 4]. The 17 writes are split as follows [0, 1, 6, 3, 2, 5]. [2024-11-10 09:13:52,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,617 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 09:13:52,628 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 09:13:52,628 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 09:13:52,629 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 09:13:52,629 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (1/1) ... [2024-11-10 09:13:52,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 09:13:52,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 09:13:52,662 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) [2024-11-10 09:13:52,666 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 [2024-11-10 09:13:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 09:13:52,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-10 09:13:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-10 09:13:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-10 09:13:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-10 09:13:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-10 09:13:52,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-10 09:13:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 09:13:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 09:13:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 09:13:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 09:13:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 09:13:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 09:13:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-10 09:13:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-10 09:13:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-10 09:13:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-10 09:13:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-10 09:13:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-10 09:13:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 09:13:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 09:13:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 09:13:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 09:13:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 09:13:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 09:13:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 09:13:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 09:13:52,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 09:13:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 09:13:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 09:13:52,816 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 09:13:52,818 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 09:13:53,150 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L105: havoc property_#t~mem90#1;havoc property_#t~ite110#1;havoc property_#t~mem91#1;havoc property_#t~mem92#1;havoc property_#t~ite107#1;havoc property_#t~mem106#1;havoc property_#t~mem93#1;havoc property_#t~mem94#1;havoc property_#t~ite97#1;havoc property_#t~mem95#1;havoc property_#t~mem96#1;havoc property_#t~mem98#1;havoc property_#t~ite105#1;havoc property_#t~mem99#1;havoc property_#t~mem100#1;havoc property_#t~ite103#1;havoc property_#t~mem101#1;havoc property_#t~mem102#1;havoc property_#t~mem104#1;havoc property_#t~mem109#1;havoc property_#t~mem108#1;havoc property_#t~mem111#1;havoc property_#t~mem112#1;havoc property_#t~mem113#1;havoc property_#t~ite125#1;havoc property_#t~mem114#1;havoc property_#t~ite122#1;havoc property_#t~mem115#1;havoc property_#t~mem116#1;havoc property_#t~ite119#1;havoc property_#t~mem118#1;havoc property_#t~mem117#1;havoc property_#t~mem121#1;havoc property_#t~mem120#1;havoc property_#t~mem124#1;havoc property_#t~mem123#1;havoc property_#t~short126#1;havoc property_#t~mem127#1;havoc property_#t~mem128#1;havoc property_#t~ite144#1;havoc property_#t~mem133#1;havoc property_#t~mem129#1;havoc property_#t~mem130#1;havoc property_#t~mem131#1;havoc property_#t~bitwise132#1;havoc property_#t~ite137#1;havoc property_#t~mem136#1;havoc property_#t~mem134#1;havoc property_#t~mem135#1;havoc property_#t~mem143#1;havoc property_#t~mem138#1;havoc property_#t~ite141#1;havoc property_#t~mem139#1;havoc property_#t~mem140#1;havoc property_#t~mem142#1;havoc property_#t~short145#1;havoc property_#t~mem147#1;havoc property_#t~mem146#1;havoc property_#t~short148#1; [2024-11-10 09:13:53,179 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-11-10 09:13:53,179 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 09:13:53,193 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 09:13:53,193 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 09:13:53,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 09:13:53 BoogieIcfgContainer [2024-11-10 09:13:53,194 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 09:13:53,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 09:13:53,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 09:13:53,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 09:13:53,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:13:52" (1/3) ... [2024-11-10 09:13:53,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae43b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:13:53, skipping insertion in model container [2024-11-10 09:13:53,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:13:52" (2/3) ... [2024-11-10 09:13:53,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae43b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:13:53, skipping insertion in model container [2024-11-10 09:13:53,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 09:13:53" (3/3) ... [2024-11-10 09:13:53,203 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-30.i [2024-11-10 09:13:53,216 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 09:13:53,216 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 09:13:53,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 09:13:53,269 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;@17d7301d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 09:13:53,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 09:13:53,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 103 states have (on average 1.3980582524271845) internal successors, (144), 104 states have internal predecessors, (144), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-10 09:13:53,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-10 09:13:53,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:53,283 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:53,283 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:53,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash 127846563, now seen corresponding path program 1 times [2024-11-10 09:13:53,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:53,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235611814] [2024-11-10 09:13:53,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:53,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:13:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:13:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:13:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:13:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:13:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:13:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:13:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:13:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:13:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:13:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:13:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:13:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:13:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:13:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:13:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:13:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:13:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:13:53,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:13:53,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235611814] [2024-11-10 09:13:53,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235611814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:13:53,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:13:53,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 09:13:53,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764844534] [2024-11-10 09:13:53,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:13:53,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 09:13:53,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:13:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 09:13:53,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 09:13:53,605 INFO L87 Difference]: Start difference. First operand has 123 states, 103 states have (on average 1.3980582524271845) internal successors, (144), 104 states have internal predecessors, (144), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:53,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:13:53,630 INFO L93 Difference]: Finished difference Result 238 states and 366 transitions. [2024-11-10 09:13:53,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 09:13:53,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-10 09:13:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:13:53,638 INFO L225 Difference]: With dead ends: 238 [2024-11-10 09:13:53,638 INFO L226 Difference]: Without dead ends: 118 [2024-11-10 09:13:53,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 09:13:53,643 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 09:13:53,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 09:13:53,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-10 09:13:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-10 09:13:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-10 09:13:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 170 transitions. [2024-11-10 09:13:53,674 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 170 transitions. Word has length 140 [2024-11-10 09:13:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:13:53,674 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 170 transitions. [2024-11-10 09:13:53,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 170 transitions. [2024-11-10 09:13:53,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-10 09:13:53,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:53,677 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:53,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 09:13:53,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:53,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:53,678 INFO L85 PathProgramCache]: Analyzing trace with hash 86722254, now seen corresponding path program 1 times [2024-11-10 09:13:53,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:53,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013655387] [2024-11-10 09:13:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:53,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:13:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:13:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:13:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:13:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:13:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:13:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:13:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:13:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:13:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:13:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:13:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:13:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:13:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:13:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:13:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:13:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:13:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:13:53,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:13:53,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013655387] [2024-11-10 09:13:53,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013655387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:13:53,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:13:53,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 09:13:53,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110528792] [2024-11-10 09:13:53,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:13:53,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 09:13:53,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:13:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 09:13:53,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 09:13:53,914 INFO L87 Difference]: Start difference. First operand 118 states and 170 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:13:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:13:53,949 INFO L93 Difference]: Finished difference Result 236 states and 341 transitions. [2024-11-10 09:13:53,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 09:13:53,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-11-10 09:13:53,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:13:53,951 INFO L225 Difference]: With dead ends: 236 [2024-11-10 09:13:53,951 INFO L226 Difference]: Without dead ends: 121 [2024-11-10 09:13:53,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 09:13:53,953 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 09:13:53,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 486 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 09:13:53,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-10 09:13:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-11-10 09:13:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-10 09:13:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2024-11-10 09:13:53,965 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 140 [2024-11-10 09:13:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:13:53,967 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2024-11-10 09:13:53,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:13:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2024-11-10 09:13:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-10 09:13:53,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:53,969 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:53,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 09:13:53,969 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:53,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash 115351405, now seen corresponding path program 1 times [2024-11-10 09:13:53,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:53,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309072811] [2024-11-10 09:13:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:53,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:13:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:13:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:13:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:13:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:13:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:13:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:13:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:13:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:13:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:13:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:13:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:13:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:13:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:13:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:13:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:13:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:13:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:13:55,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:13:55,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309072811] [2024-11-10 09:13:55,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309072811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:13:55,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:13:55,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 09:13:55,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005985912] [2024-11-10 09:13:55,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:13:55,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 09:13:55,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:13:55,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 09:13:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-10 09:13:55,483 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:13:56,104 INFO L93 Difference]: Finished difference Result 429 states and 614 transitions. [2024-11-10 09:13:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 09:13:56,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-10 09:13:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:13:56,107 INFO L225 Difference]: With dead ends: 429 [2024-11-10 09:13:56,107 INFO L226 Difference]: Without dead ends: 312 [2024-11-10 09:13:56,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-10 09:13:56,109 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 362 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 09:13:56,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1522 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 09:13:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-10 09:13:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 214. [2024-11-10 09:13:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 183 states have (on average 1.3770491803278688) internal successors, (252), 184 states have internal predecessors, (252), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 09:13:56,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 308 transitions. [2024-11-10 09:13:56,141 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 308 transitions. Word has length 140 [2024-11-10 09:13:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:13:56,141 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 308 transitions. [2024-11-10 09:13:56,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 308 transitions. [2024-11-10 09:13:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-10 09:13:56,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:56,144 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:56,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 09:13:56,144 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:56,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:56,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1414089522, now seen corresponding path program 1 times [2024-11-10 09:13:56,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:56,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375532917] [2024-11-10 09:13:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:56,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:13:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:13:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:13:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:13:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:13:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:13:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:13:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:13:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:13:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:13:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:13:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:13:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:13:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:13:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:13:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:13:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:13:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:13:56,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:13:56,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375532917] [2024-11-10 09:13:56,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375532917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:13:56,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:13:56,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 09:13:56,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26935742] [2024-11-10 09:13:56,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:13:56,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 09:13:56,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:13:56,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 09:13:56,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 09:13:56,449 INFO L87 Difference]: Start difference. First operand 214 states and 308 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:13:56,553 INFO L93 Difference]: Finished difference Result 431 states and 618 transitions. [2024-11-10 09:13:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 09:13:56,554 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-10 09:13:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:13:56,556 INFO L225 Difference]: With dead ends: 431 [2024-11-10 09:13:56,557 INFO L226 Difference]: Without dead ends: 220 [2024-11-10 09:13:56,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 09:13:56,559 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 75 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:13:56,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1052 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:13:56,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-10 09:13:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 214. [2024-11-10 09:13:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 183 states have (on average 1.3715846994535519) internal successors, (251), 184 states have internal predecessors, (251), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 09:13:56,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 307 transitions. [2024-11-10 09:13:56,577 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 307 transitions. Word has length 141 [2024-11-10 09:13:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:13:56,577 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 307 transitions. [2024-11-10 09:13:56,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 307 transitions. [2024-11-10 09:13:56,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-10 09:13:56,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:56,579 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:56,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 09:13:56,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:56,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:56,580 INFO L85 PathProgramCache]: Analyzing trace with hash 50723929, now seen corresponding path program 1 times [2024-11-10 09:13:56,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:56,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744275131] [2024-11-10 09:13:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:56,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:13:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:13:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:13:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:13:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:13:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:13:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:13:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:13:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:13:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:13:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:13:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:13:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:13:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:13:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:13:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:13:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:13:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:13:56,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:13:56,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744275131] [2024-11-10 09:13:56,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744275131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:13:56,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:13:56,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 09:13:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887825133] [2024-11-10 09:13:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:13:56,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 09:13:56,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:13:56,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 09:13:56,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:13:56,752 INFO L87 Difference]: Start difference. First operand 214 states and 307 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:13:56,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:13:56,784 INFO L93 Difference]: Finished difference Result 431 states and 619 transitions. [2024-11-10 09:13:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 09:13:56,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-11-10 09:13:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:13:56,790 INFO L225 Difference]: With dead ends: 431 [2024-11-10 09:13:56,790 INFO L226 Difference]: Without dead ends: 220 [2024-11-10 09:13:56,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:13:56,791 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 09:13:56,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 650 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 09:13:56,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-10 09:13:56,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2024-11-10 09:13:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 187 states have (on average 1.3636363636363635) internal successors, (255), 188 states have internal predecessors, (255), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 09:13:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 311 transitions. [2024-11-10 09:13:56,802 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 311 transitions. Word has length 142 [2024-11-10 09:13:56,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:13:56,802 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 311 transitions. [2024-11-10 09:13:56,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:13:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 311 transitions. [2024-11-10 09:13:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-10 09:13:56,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:56,804 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:56,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 09:13:56,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:56,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:56,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1444807766, now seen corresponding path program 1 times [2024-11-10 09:13:56,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:56,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854683248] [2024-11-10 09:13:56,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:56,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:13:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:13:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:13:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:13:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:13:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:13:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:13:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:13:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:13:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:13:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:13:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:13:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:13:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:13:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:13:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:13:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:13:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:13:57,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:13:57,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854683248] [2024-11-10 09:13:57,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854683248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:13:57,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:13:57,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 09:13:57,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893657429] [2024-11-10 09:13:57,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:13:57,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 09:13:57,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:13:57,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 09:13:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 09:13:57,734 INFO L87 Difference]: Start difference. First operand 218 states and 311 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:58,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:13:58,529 INFO L93 Difference]: Finished difference Result 531 states and 753 transitions. [2024-11-10 09:13:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 09:13:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-10 09:13:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:13:58,531 INFO L225 Difference]: With dead ends: 531 [2024-11-10 09:13:58,533 INFO L226 Difference]: Without dead ends: 316 [2024-11-10 09:13:58,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 09:13:58,536 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 264 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 09:13:58,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1508 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 09:13:58,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-10 09:13:58,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 223. [2024-11-10 09:13:58,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 192 states have (on average 1.359375) internal successors, (261), 193 states have internal predecessors, (261), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 09:13:58,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 317 transitions. [2024-11-10 09:13:58,555 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 317 transitions. Word has length 142 [2024-11-10 09:13:58,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:13:58,555 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 317 transitions. [2024-11-10 09:13:58,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:13:58,555 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 317 transitions. [2024-11-10 09:13:58,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 09:13:58,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:58,557 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:58,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 09:13:58,557 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:58,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:58,558 INFO L85 PathProgramCache]: Analyzing trace with hash 777340707, now seen corresponding path program 1 times [2024-11-10 09:13:58,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:58,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732964048] [2024-11-10 09:13:58,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:58,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:13:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:13:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:13:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:13:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:13:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:13:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:13:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:13:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:13:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:13:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:13:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:13:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:13:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:13:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:13:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:13:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:13:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:13:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:13:59,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:13:59,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732964048] [2024-11-10 09:13:59,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732964048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:13:59,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:13:59,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 09:13:59,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119254838] [2024-11-10 09:13:59,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:13:59,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 09:13:59,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:13:59,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 09:13:59,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-10 09:13:59,199 INFO L87 Difference]: Start difference. First operand 223 states and 317 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:13:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:13:59,800 INFO L93 Difference]: Finished difference Result 774 states and 1092 transitions. [2024-11-10 09:13:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 09:13:59,801 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-10 09:13:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:13:59,804 INFO L225 Difference]: With dead ends: 774 [2024-11-10 09:13:59,804 INFO L226 Difference]: Without dead ends: 554 [2024-11-10 09:13:59,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-10 09:13:59,805 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 223 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 09:13:59,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 1625 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 09:13:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-10 09:13:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 390. [2024-11-10 09:13:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 347 states have (on average 1.3688760806916427) internal successors, (475), 350 states have internal predecessors, (475), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-10 09:13:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 551 transitions. [2024-11-10 09:13:59,829 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 551 transitions. Word has length 143 [2024-11-10 09:13:59,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:13:59,830 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 551 transitions. [2024-11-10 09:13:59,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:13:59,830 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 551 transitions. [2024-11-10 09:13:59,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 09:13:59,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:13:59,832 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:13:59,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 09:13:59,832 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:13:59,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:13:59,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2130650404, now seen corresponding path program 1 times [2024-11-10 09:13:59,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:13:59,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004755477] [2024-11-10 09:13:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:13:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:13:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:14:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:14:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:14:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:14:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:14:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:14:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:14:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:14:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:14:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:14:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:14:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:14:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:14:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:14:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:14:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:14:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:14:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:00,325 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:14:00,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:14:00,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004755477] [2024-11-10 09:14:00,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004755477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:14:00,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:14:00,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 09:14:00,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326646610] [2024-11-10 09:14:00,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:14:00,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 09:14:00,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:14:00,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 09:14:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 09:14:00,327 INFO L87 Difference]: Start difference. First operand 390 states and 551 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:14:00,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:14:00,601 INFO L93 Difference]: Finished difference Result 782 states and 1103 transitions. [2024-11-10 09:14:00,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 09:14:00,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-10 09:14:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:14:00,603 INFO L225 Difference]: With dead ends: 782 [2024-11-10 09:14:00,603 INFO L226 Difference]: Without dead ends: 395 [2024-11-10 09:14:00,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 09:14:00,605 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 102 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:14:00,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 994 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:14:00,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-10 09:14:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 390. [2024-11-10 09:14:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 347 states have (on average 1.3631123919308357) internal successors, (473), 350 states have internal predecessors, (473), 38 states have call successors, (38), 4 states have call predecessors, (38), 4 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-10 09:14:00,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 549 transitions. [2024-11-10 09:14:00,620 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 549 transitions. Word has length 143 [2024-11-10 09:14:00,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:14:00,620 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 549 transitions. [2024-11-10 09:14:00,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:14:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 549 transitions. [2024-11-10 09:14:00,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-10 09:14:00,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:14:00,622 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:14:00,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 09:14:00,622 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:14:00,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:14:00,623 INFO L85 PathProgramCache]: Analyzing trace with hash -236894715, now seen corresponding path program 1 times [2024-11-10 09:14:00,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:14:00,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185756334] [2024-11-10 09:14:00,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:00,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:14:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:14:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:14:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:14:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:14:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:14:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:14:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:14:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:14:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:14:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:14:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:14:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:14:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:14:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:14:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:14:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:14:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:14:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:01,235 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:14:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:14:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185756334] [2024-11-10 09:14:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185756334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:14:01,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:14:01,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 09:14:01,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598432474] [2024-11-10 09:14:01,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:14:01,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 09:14:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:14:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 09:14:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 09:14:01,237 INFO L87 Difference]: Start difference. First operand 390 states and 549 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:14:01,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:14:01,648 INFO L93 Difference]: Finished difference Result 936 states and 1313 transitions. [2024-11-10 09:14:01,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 09:14:01,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2024-11-10 09:14:01,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:14:01,651 INFO L225 Difference]: With dead ends: 936 [2024-11-10 09:14:01,651 INFO L226 Difference]: Without dead ends: 549 [2024-11-10 09:14:01,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-10 09:14:01,652 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 318 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 09:14:01,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1188 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 09:14:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-10 09:14:01,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 372. [2024-11-10 09:14:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 322 states have (on average 1.34472049689441) internal successors, (433), 325 states have internal predecessors, (433), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-10 09:14:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 521 transitions. [2024-11-10 09:14:01,675 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 521 transitions. Word has length 143 [2024-11-10 09:14:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:14:01,675 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 521 transitions. [2024-11-10 09:14:01,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:14:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 521 transitions. [2024-11-10 09:14:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 09:14:01,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:14:01,677 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:14:01,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 09:14:01,677 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:14:01,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:14:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2007634974, now seen corresponding path program 1 times [2024-11-10 09:14:01,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:14:01,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191535600] [2024-11-10 09:14:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:01,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:14:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:14:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:14:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:14:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:14:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:14:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:14:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:14:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:14:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:14:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:14:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:14:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:14:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:14:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:14:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:14:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:14:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:14:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:14:02,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:14:02,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191535600] [2024-11-10 09:14:02,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191535600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:14:02,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:14:02,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 09:14:02,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047955961] [2024-11-10 09:14:02,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:14:02,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 09:14:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:14:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 09:14:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 09:14:02,114 INFO L87 Difference]: Start difference. First operand 372 states and 521 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:14:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:14:02,323 INFO L93 Difference]: Finished difference Result 916 states and 1274 transitions. [2024-11-10 09:14:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 09:14:02,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-10 09:14:02,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:14:02,326 INFO L225 Difference]: With dead ends: 916 [2024-11-10 09:14:02,326 INFO L226 Difference]: Without dead ends: 574 [2024-11-10 09:14:02,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-10 09:14:02,328 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 124 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:14:02,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1407 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:14:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-10 09:14:02,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 570. [2024-11-10 09:14:02,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 492 states have (on average 1.3333333333333333) internal successors, (656), 497 states have internal predecessors, (656), 68 states have call successors, (68), 9 states have call predecessors, (68), 9 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-10 09:14:02,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 792 transitions. [2024-11-10 09:14:02,355 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 792 transitions. Word has length 145 [2024-11-10 09:14:02,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:14:02,356 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 792 transitions. [2024-11-10 09:14:02,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:14:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 792 transitions. [2024-11-10 09:14:02,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-10 09:14:02,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:14:02,357 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:14:02,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 09:14:02,357 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:14:02,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:14:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1165524801, now seen corresponding path program 1 times [2024-11-10 09:14:02,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:14:02,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016227272] [2024-11-10 09:14:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:02,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:14:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:14:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:14:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:14:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:14:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:14:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:14:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:14:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:14:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:14:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:14:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:14:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:14:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:14:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:14:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:14:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:14:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:14:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:14:02,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:14:02,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016227272] [2024-11-10 09:14:02,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016227272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:14:02,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:14:02,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 09:14:02,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838573974] [2024-11-10 09:14:02,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:14:02,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 09:14:02,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:14:02,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 09:14:02,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 09:14:02,642 INFO L87 Difference]: Start difference. First operand 570 states and 792 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:14:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:14:02,843 INFO L93 Difference]: Finished difference Result 1117 states and 1542 transitions. [2024-11-10 09:14:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 09:14:02,843 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 145 [2024-11-10 09:14:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:14:02,847 INFO L225 Difference]: With dead ends: 1117 [2024-11-10 09:14:02,847 INFO L226 Difference]: Without dead ends: 577 [2024-11-10 09:14:02,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 09:14:02,851 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 94 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 09:14:02,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 519 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 09:14:02,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-10 09:14:02,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 477. [2024-11-10 09:14:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 416 states have (on average 1.3269230769230769) internal successors, (552), 419 states have internal predecessors, (552), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-10 09:14:02,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 656 transitions. [2024-11-10 09:14:02,881 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 656 transitions. Word has length 145 [2024-11-10 09:14:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:14:02,882 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 656 transitions. [2024-11-10 09:14:02,882 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-10 09:14:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 656 transitions. [2024-11-10 09:14:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-10 09:14:02,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:14:02,885 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:14:02,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 09:14:02,885 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:14:02,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:14:02,885 INFO L85 PathProgramCache]: Analyzing trace with hash -121421134, now seen corresponding path program 1 times [2024-11-10 09:14:02,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:14:02,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950511364] [2024-11-10 09:14:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:02,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:14:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:14:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:14:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:14:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:14:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:14:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:14:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:14:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:14:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:14:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:14:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:14:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:14:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:14:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:14:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:14:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:14:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:14:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-10 09:14:03,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:14:03,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950511364] [2024-11-10 09:14:03,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950511364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 09:14:03,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 09:14:03,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 09:14:03,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446066329] [2024-11-10 09:14:03,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 09:14:03,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 09:14:03,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:14:03,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 09:14:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 09:14:03,161 INFO L87 Difference]: Start difference. First operand 477 states and 656 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:14:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:14:03,291 INFO L93 Difference]: Finished difference Result 959 states and 1314 transitions. [2024-11-10 09:14:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 09:14:03,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2024-11-10 09:14:03,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:14:03,308 INFO L225 Difference]: With dead ends: 959 [2024-11-10 09:14:03,308 INFO L226 Difference]: Without dead ends: 485 [2024-11-10 09:14:03,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 09:14:03,309 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 144 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 09:14:03,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 714 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 09:14:03,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-10 09:14:03,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 441. [2024-11-10 09:14:03,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 380 states have (on average 1.318421052631579) internal successors, (501), 383 states have internal predecessors, (501), 52 states have call successors, (52), 8 states have call predecessors, (52), 8 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-10 09:14:03,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 605 transitions. [2024-11-10 09:14:03,350 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 605 transitions. Word has length 146 [2024-11-10 09:14:03,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:14:03,351 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 605 transitions. [2024-11-10 09:14:03,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-10 09:14:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 605 transitions. [2024-11-10 09:14:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 09:14:03,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:14:03,352 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:14:03,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 09:14:03,352 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:14:03,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:14:03,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1644733939, now seen corresponding path program 1 times [2024-11-10 09:14:03,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:14:03,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299552651] [2024-11-10 09:14:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:03,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:14:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:14:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:14:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:14:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:14:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:14:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:14:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:14:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:14:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:14:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:14:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:14:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:14:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:14:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:14:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:14:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:14:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:14:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:03,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-10 09:14:03,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:14:03,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299552651] [2024-11-10 09:14:03,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299552651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 09:14:03,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743202355] [2024-11-10 09:14:03,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:03,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 09:14:03,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 09:14:03,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 09:14:03,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 09:14:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:04,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 09:14:04,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 09:14:04,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-11-10 09:14:04,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-10 09:14:04,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-10 09:14:04,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-10 09:14:04,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-10 09:14:04,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-10 09:14:04,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-10 09:14:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 282 proven. 27 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-10 09:14:04,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 09:14:05,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743202355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 09:14:05,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 09:14:05,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2024-11-10 09:14:05,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788979919] [2024-11-10 09:14:05,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 09:14:05,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 09:14:05,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 09:14:05,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 09:14:05,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-11-10 09:14:05,393 INFO L87 Difference]: Start difference. First operand 441 states and 605 transitions. Second operand has 19 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 19 states have internal predecessors, (84), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 2 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-10 09:14:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 09:14:06,519 INFO L93 Difference]: Finished difference Result 1257 states and 1710 transitions. [2024-11-10 09:14:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-10 09:14:06,519 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 19 states have internal predecessors, (84), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 2 states have call predecessors, (34), 4 states have call successors, (34) Word has length 147 [2024-11-10 09:14:06,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 09:14:06,522 INFO L225 Difference]: With dead ends: 1257 [2024-11-10 09:14:06,522 INFO L226 Difference]: Without dead ends: 819 [2024-11-10 09:14:06,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=253, Invalid=1469, Unknown=0, NotChecked=0, Total=1722 [2024-11-10 09:14:06,524 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 459 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 09:14:06,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1618 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 09:14:06,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-10 09:14:06,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 773. [2024-11-10 09:14:06,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 662 states have (on average 1.3141993957703928) internal successors, (870), 667 states have internal predecessors, (870), 93 states have call successors, (93), 17 states have call predecessors, (93), 17 states have return successors, (93), 88 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-10 09:14:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1056 transitions. [2024-11-10 09:14:06,560 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1056 transitions. Word has length 147 [2024-11-10 09:14:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 09:14:06,561 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 1056 transitions. [2024-11-10 09:14:06,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 19 states have internal predecessors, (84), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 2 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-10 09:14:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1056 transitions. [2024-11-10 09:14:06,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-10 09:14:06,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 09:14:06,562 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 09:14:06,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 09:14:06,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-10 09:14:06,763 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 09:14:06,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 09:14:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1856084852, now seen corresponding path program 1 times [2024-11-10 09:14:06,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 09:14:06,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645258732] [2024-11-10 09:14:06,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:06,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 09:14:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 09:14:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 09:14:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 09:14:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 09:14:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 09:14:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 09:14:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-10 09:14:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 09:14:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 09:14:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 09:14:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 09:14:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 09:14:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-10 09:14:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-10 09:14:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 09:14:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 09:14:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 09:14:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-10 09:14:07,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 09:14:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645258732] [2024-11-10 09:14:07,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645258732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 09:14:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277832776] [2024-11-10 09:14:07,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 09:14:07,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 09:14:07,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 09:14:07,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 09:14:07,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 09:14:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 09:14:07,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-10 09:14:07,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 09:14:08,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 12 [2024-11-10 09:14:09,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 09:14:09,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 26 [2024-11-10 09:14:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 282 proven. 27 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-10 09:14:09,662 INFO L311 TraceCheckSpWp]: Computing backward predicates...