./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-89.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 5e56896530f71bea1daff440246bbdce733626db219e470948d24943c0708578 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:49:50,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:49:50,200 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:49:50,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:49:50,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:49:50,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:49:50,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:49:50,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:49:50,225 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:49:50,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:49:50,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:49:50,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:49:50,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:49:50,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:49:50,227 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:49:50,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:49:50,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:49:50,228 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:49:50,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:49:50,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:49:50,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:49:50,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:49:50,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:49:50,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:49:50,232 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:49:50,232 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:49:50,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:49:50,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:49:50,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:49:50,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:49:50,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:49:50,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:49:50,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:49:50,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:49:50,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:49:50,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:49:50,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:49:50,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:49:50,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:49:50,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:49:50,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:49:50,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:49:50,238 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e56896530f71bea1daff440246bbdce733626db219e470948d24943c0708578 [2024-11-16 18:49:50,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:49:50,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:49:50,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:49:50,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:49:50,474 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:49:50,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-89.i [2024-11-16 18:49:51,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:49:51,886 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:49:51,886 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-89.i [2024-11-16 18:49:51,896 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43486f2ea/c1e4115e56684e0094d76d6cf0a0390c/FLAGb83ebcaea [2024-11-16 18:49:52,278 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43486f2ea/c1e4115e56684e0094d76d6cf0a0390c [2024-11-16 18:49:52,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:49:52,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:49:52,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:49:52,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:49:52,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:49:52,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be193ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52, skipping insertion in model container [2024-11-16 18:49:52,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,310 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:49:52,437 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-89.i[916,929] [2024-11-16 18:49:52,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:49:52,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:49:52,517 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-89.i[916,929] [2024-11-16 18:49:52,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:49:52,566 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:49:52,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52 WrapperNode [2024-11-16 18:49:52,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:49:52,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:49:52,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:49:52,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:49:52,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,620 INFO L138 Inliner]: procedures = 27, calls = 132, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 428 [2024-11-16 18:49:52,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:49:52,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:49:52,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:49:52,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:49:52,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,657 INFO L175 MemorySlicer]: Split 108 memory accesses to 2 slices as follows [2, 106]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 28 writes are split as follows [0, 28]. [2024-11-16 18:49:52,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,669 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:49:52,682 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:49:52,683 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:49:52,683 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:49:52,683 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (1/1) ... [2024-11-16 18:49:52,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:49:52,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:49:52,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 18:49:52,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 18:49:52,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 18:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 18:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:49:52,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:49:52,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:49:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:49:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:49:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:49:52,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:49:52,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:49:52,839 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:49:52,841 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:49:53,200 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L108: havoc property_#t~mem58#1;havoc property_#t~mem59#1;havoc property_#t~mem60#1;havoc property_#t~ite69#1;havoc property_#t~mem64#1;havoc property_#t~mem61#1;havoc property_#t~mem62#1;havoc property_#t~short63#1;havoc property_#t~mem68#1;havoc property_#t~mem65#1;havoc property_#t~mem66#1;havoc property_#t~short67#1;havoc property_#t~ite76#1;havoc property_#t~mem75#1;havoc property_#t~mem70#1;havoc property_#t~mem71#1;havoc property_#t~ite74#1;havoc property_#t~mem72#1;havoc property_#t~mem73#1;havoc property_#t~short77#1;havoc property_#t~mem78#1;havoc property_#t~mem79#1;havoc property_#t~mem80#1;havoc property_#t~ite100#1;havoc property_#t~mem81#1;havoc property_#t~mem82#1;havoc property_#t~short83#1;havoc property_#t~ite99#1;havoc property_#t~mem84#1;havoc property_#t~mem85#1;havoc property_#t~ite98#1;havoc property_#t~mem88#1;havoc property_#t~mem86#1;havoc property_#t~bitwise87#1;havoc property_#t~ite95#1;havoc property_#t~mem90#1;havoc property_#t~mem89#1;havoc property_#t~mem94#1;havoc property_#t~mem92#1;havoc property_#t~mem91#1;havoc property_#t~short93#1;havoc property_#t~mem97#1;havoc property_#t~mem96#1;havoc property_#t~short101#1;havoc property_#t~mem103#1;havoc property_#t~mem102#1;havoc property_#t~short104#1;havoc property_#t~mem106#1;havoc property_#t~mem105#1;havoc property_#t~short107#1;havoc property_#t~mem109#1;havoc property_#t~mem108#1;havoc property_#t~short110#1; [2024-11-16 18:49:53,237 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-16 18:49:53,237 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:49:53,255 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:49:53,255 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:49:53,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:49:53 BoogieIcfgContainer [2024-11-16 18:49:53,255 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:49:53,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:49:53,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:49:53,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:49:53,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:49:52" (1/3) ... [2024-11-16 18:49:53,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182f963e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:49:53, skipping insertion in model container [2024-11-16 18:49:53,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:52" (2/3) ... [2024-11-16 18:49:53,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182f963e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:49:53, skipping insertion in model container [2024-11-16 18:49:53,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:49:53" (3/3) ... [2024-11-16 18:49:53,261 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-89.i [2024-11-16 18:49:53,273 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:49:53,273 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:49:53,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:49:53,320 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;@2bcb790, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:49:53,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:49:53,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 18:49:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:49:53,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:49:53,332 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:49:53,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:49:53,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:49:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1423925619, now seen corresponding path program 1 times [2024-11-16 18:49:53,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:49:53,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422488508] [2024-11-16 18:49:53,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:49:53,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:49:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:49:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:49:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:49:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:49:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:49:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:49:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:49:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:49:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:49:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:49:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:49:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:49:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:49:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:49:53,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:49:53,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422488508] [2024-11-16 18:49:53,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422488508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:49:53,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:49:53,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:49:53,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435182031] [2024-11-16 18:49:53,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:49:53,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:49:53,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:49:53,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:49:53,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:49:53,659 INFO L87 Difference]: Start difference. First operand has 105 states, 89 states have (on average 1.4269662921348314) internal successors, (127), 90 states have internal predecessors, (127), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:49:53,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:49:53,686 INFO L93 Difference]: Finished difference Result 202 states and 312 transitions. [2024-11-16 18:49:53,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:49:53,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-16 18:49:53,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:49:53,696 INFO L225 Difference]: With dead ends: 202 [2024-11-16 18:49:53,697 INFO L226 Difference]: Without dead ends: 100 [2024-11-16 18:49:53,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:49:53,703 INFO L432 NwaCegarLoop]: 141 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, 141 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 [2024-11-16 18:49:53,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:49:53,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-16 18:49:53,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-16 18:49:53,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 18:49:53,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2024-11-16 18:49:53,736 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 111 [2024-11-16 18:49:53,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:49:53,736 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2024-11-16 18:49:53,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:49:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2024-11-16 18:49:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:49:53,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:49:53,739 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:49:53,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:49:53,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:49:53,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:49:53,740 INFO L85 PathProgramCache]: Analyzing trace with hash -516957632, now seen corresponding path program 1 times [2024-11-16 18:49:53,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:49:53,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134562458] [2024-11-16 18:49:53,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:49:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:49:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:49:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:49:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:49:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:49:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:49:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:49:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:49:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:49:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:49:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:49:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:49:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:53,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:49:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:49:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:49:54,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:49:54,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134562458] [2024-11-16 18:49:54,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134562458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:49:54,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:49:54,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:49:54,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589570001] [2024-11-16 18:49:54,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:49:54,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:49:54,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:49:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:49:54,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:49:54,006 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:49:54,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:49:54,058 INFO L93 Difference]: Finished difference Result 200 states and 287 transitions. [2024-11-16 18:49:54,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:49:54,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-16 18:49:54,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:49:54,061 INFO L225 Difference]: With dead ends: 200 [2024-11-16 18:49:54,061 INFO L226 Difference]: Without dead ends: 103 [2024-11-16 18:49:54,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:49:54,062 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:49:54,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 403 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:49:54,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-16 18:49:54,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2024-11-16 18:49:54,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 18:49:54,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2024-11-16 18:49:54,070 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 111 [2024-11-16 18:49:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:49:54,071 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2024-11-16 18:49:54,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:49:54,071 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2024-11-16 18:49:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:49:54,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:49:54,073 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:49:54,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:49:54,073 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:49:54,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:49:54,073 INFO L85 PathProgramCache]: Analyzing trace with hash -713471137, now seen corresponding path program 1 times [2024-11-16 18:49:54,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:49:54,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694067325] [2024-11-16 18:49:54,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:49:54,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:49:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:49:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:49:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:49:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:49:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:49:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:49:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:49:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:49:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:49:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:49:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:49:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:49:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:49:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:49:54,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:49:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694067325] [2024-11-16 18:49:54,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694067325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:49:54,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:49:54,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:49:54,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570010858] [2024-11-16 18:49:54,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:49:54,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:49:54,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:49:54,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:49:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:49:54,317 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:49:54,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:49:54,363 INFO L93 Difference]: Finished difference Result 204 states and 291 transitions. [2024-11-16 18:49:54,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:49:54,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-16 18:49:54,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:49:54,366 INFO L225 Difference]: With dead ends: 204 [2024-11-16 18:49:54,366 INFO L226 Difference]: Without dead ends: 105 [2024-11-16 18:49:54,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:49:54,367 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:49:54,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 529 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:49:54,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-16 18:49:54,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2024-11-16 18:49:54,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 18:49:54,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2024-11-16 18:49:54,374 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 147 transitions. Word has length 111 [2024-11-16 18:49:54,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:49:54,374 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 147 transitions. [2024-11-16 18:49:54,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:49:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 147 transitions. [2024-11-16 18:49:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:49:54,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:49:54,376 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:49:54,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:49:54,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:49:54,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:49:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1029339198, now seen corresponding path program 1 times [2024-11-16 18:49:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:49:54,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414566305] [2024-11-16 18:49:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:49:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:49:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:49:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:49:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:49:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:49:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:49:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:49:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:49:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:49:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:49:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:49:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:49:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:49:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:49:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-16 18:49:56,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:49:56,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414566305] [2024-11-16 18:49:56,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414566305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:49:56,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589518628] [2024-11-16 18:49:56,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:49:56,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:49:56,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:49:56,743 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) [2024-11-16 18:49:56,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 18:49:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:56,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-16 18:49:56,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:49:57,033 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 19 treesize of output 1 [2024-11-16 18:49:57,041 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 19 treesize of output 1 [2024-11-16 18:49:57,046 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 19 treesize of output 1 [2024-11-16 18:49:57,054 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 19 treesize of output 1 [2024-11-16 18:49:57,059 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 19 treesize of output 1 [2024-11-16 18:49:57,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-16 18:49:57,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:49:57,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 44 [2024-11-16 18:49:57,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:49:57,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 73 [2024-11-16 18:49:57,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:49:57,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 34 [2024-11-16 18:49:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:49:57,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 18:49:57,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589518628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:49:57,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 18:49:57,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2024-11-16 18:49:57,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363149901] [2024-11-16 18:49:57,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:49:57,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:49:57,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:49:57,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:49:57,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:49:57,354 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:49:57,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:49:57,677 INFO L93 Difference]: Finished difference Result 264 states and 375 transitions. [2024-11-16 18:49:57,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:49:57,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-16 18:49:57,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:49:57,681 INFO L225 Difference]: With dead ends: 264 [2024-11-16 18:49:57,681 INFO L226 Difference]: Without dead ends: 163 [2024-11-16 18:49:57,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:49:57,683 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 147 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:49:57,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 387 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:49:57,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-16 18:49:57,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 118. [2024-11-16 18:49:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 103 states have (on average 1.3883495145631068) internal successors, (143), 103 states have internal predecessors, (143), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 18:49:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 169 transitions. [2024-11-16 18:49:57,700 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 169 transitions. Word has length 111 [2024-11-16 18:49:57,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:49:57,701 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 169 transitions. [2024-11-16 18:49:57,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:49:57,701 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 169 transitions. [2024-11-16 18:49:57,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:49:57,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:49:57,702 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:49:57,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 18:49:57,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:49:57,903 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:49:57,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:49:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash 412151866, now seen corresponding path program 1 times [2024-11-16 18:49:57,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:49:57,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488573138] [2024-11-16 18:49:57,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:49:57,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:49:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:49:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:49:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:49:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:49:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:49:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:49:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:49:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:49:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:49:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:49:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:49:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:49:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:49:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:49:58,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:49:58,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488573138] [2024-11-16 18:49:58,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488573138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:49:58,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:49:58,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:49:58,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817401190] [2024-11-16 18:49:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:49:58,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:49:58,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:49:58,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:49:58,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:49:58,778 INFO L87 Difference]: Start difference. First operand 118 states and 169 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:49:59,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:49:59,250 INFO L93 Difference]: Finished difference Result 314 states and 447 transitions. [2024-11-16 18:49:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:49:59,250 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-16 18:49:59,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:49:59,252 INFO L225 Difference]: With dead ends: 314 [2024-11-16 18:49:59,253 INFO L226 Difference]: Without dead ends: 199 [2024-11-16 18:49:59,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:49:59,256 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 100 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:49:59,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 659 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:49:59,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-16 18:49:59,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2024-11-16 18:49:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 172 states have (on average 1.377906976744186) internal successors, (237), 173 states have internal predecessors, (237), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:49:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 277 transitions. [2024-11-16 18:49:59,276 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 277 transitions. Word has length 111 [2024-11-16 18:49:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:49:59,276 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 277 transitions. [2024-11-16 18:49:59,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:49:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 277 transitions. [2024-11-16 18:49:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:49:59,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:49:59,278 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:49:59,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:49:59,278 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:49:59,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:49:59,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1765461563, now seen corresponding path program 1 times [2024-11-16 18:49:59,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:49:59,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318058613] [2024-11-16 18:49:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:49:59,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:49:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:49:59,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:49:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:49:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:49:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:49:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:49:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:49:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:49:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:49:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:49:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:49:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:49:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:49:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:49:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:49:59,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:49:59,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318058613] [2024-11-16 18:49:59,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318058613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:49:59,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:49:59,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:49:59,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923926052] [2024-11-16 18:49:59,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:49:59,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:49:59,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:49:59,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:49:59,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:49:59,784 INFO L87 Difference]: Start difference. First operand 195 states and 277 transitions. Second operand has 7 states, 5 states have (on average 9.8) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 18:50:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:00,022 INFO L93 Difference]: Finished difference Result 400 states and 564 transitions. [2024-11-16 18:50:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-16 18:50:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:00,025 INFO L225 Difference]: With dead ends: 400 [2024-11-16 18:50:00,025 INFO L226 Difference]: Without dead ends: 208 [2024-11-16 18:50:00,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:00,026 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 157 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:00,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 615 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-16 18:50:00,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2024-11-16 18:50:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 177 states have (on average 1.3559322033898304) internal successors, (240), 179 states have internal predecessors, (240), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:50:00,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 286 transitions. [2024-11-16 18:50:00,047 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 286 transitions. Word has length 111 [2024-11-16 18:50:00,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:00,048 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 286 transitions. [2024-11-16 18:50:00,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 18:50:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 286 transitions. [2024-11-16 18:50:00,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:50:00,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:00,049 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:00,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:50:00,050 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:00,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:00,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1656916347, now seen corresponding path program 1 times [2024-11-16 18:50:00,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:00,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551160904] [2024-11-16 18:50:00,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:00,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:00,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:00,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551160904] [2024-11-16 18:50:00,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551160904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:00,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:00,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:00,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410164916] [2024-11-16 18:50:00,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:00,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:00,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:00,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:00,476 INFO L87 Difference]: Start difference. First operand 204 states and 286 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:00,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:00,680 INFO L93 Difference]: Finished difference Result 458 states and 636 transitions. [2024-11-16 18:50:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:00,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-16 18:50:00,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:00,682 INFO L225 Difference]: With dead ends: 458 [2024-11-16 18:50:00,682 INFO L226 Difference]: Without dead ends: 265 [2024-11-16 18:50:00,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:00,683 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 85 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:00,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 509 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-16 18:50:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2024-11-16 18:50:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 219 states have (on average 1.360730593607306) internal successors, (298), 221 states have internal predecessors, (298), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-16 18:50:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 344 transitions. [2024-11-16 18:50:00,693 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 344 transitions. Word has length 111 [2024-11-16 18:50:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:00,693 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 344 transitions. [2024-11-16 18:50:00,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 344 transitions. [2024-11-16 18:50:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:50:00,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:00,694 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:00,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:50:00,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:00,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:00,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1284741252, now seen corresponding path program 1 times [2024-11-16 18:50:00,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:00,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095342199] [2024-11-16 18:50:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:00,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:00,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:01,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:01,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:01,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:01,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:01,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:01,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095342199] [2024-11-16 18:50:01,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095342199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:01,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:01,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:50:01,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390235774] [2024-11-16 18:50:01,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:01,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:50:01,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:01,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:50:01,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:01,008 INFO L87 Difference]: Start difference. First operand 247 states and 344 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:01,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:01,307 INFO L93 Difference]: Finished difference Result 554 states and 766 transitions. [2024-11-16 18:50:01,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:50:01,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-16 18:50:01,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:01,309 INFO L225 Difference]: With dead ends: 554 [2024-11-16 18:50:01,309 INFO L226 Difference]: Without dead ends: 310 [2024-11-16 18:50:01,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:50:01,310 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 120 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:01,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 832 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:01,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-16 18:50:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 295. [2024-11-16 18:50:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 247 states have (on average 1.3157894736842106) internal successors, (325), 250 states have internal predecessors, (325), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-16 18:50:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 405 transitions. [2024-11-16 18:50:01,331 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 405 transitions. Word has length 111 [2024-11-16 18:50:01,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:01,332 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 405 transitions. [2024-11-16 18:50:01,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 405 transitions. [2024-11-16 18:50:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:50:01,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:01,333 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:01,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:50:01,333 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:01,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:01,334 INFO L85 PathProgramCache]: Analyzing trace with hash 175566146, now seen corresponding path program 1 times [2024-11-16 18:50:01,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:01,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016279750] [2024-11-16 18:50:01,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:01,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:02,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:02,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016279750] [2024-11-16 18:50:02,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016279750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:02,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:02,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:50:02,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031312214] [2024-11-16 18:50:02,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:02,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:50:02,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:02,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:50:02,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:50:02,134 INFO L87 Difference]: Start difference. First operand 295 states and 405 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:02,630 INFO L93 Difference]: Finished difference Result 642 states and 888 transitions. [2024-11-16 18:50:02,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:50:02,630 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-16 18:50:02,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:02,632 INFO L225 Difference]: With dead ends: 642 [2024-11-16 18:50:02,632 INFO L226 Difference]: Without dead ends: 374 [2024-11-16 18:50:02,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:50:02,635 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 97 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:02,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 967 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:50:02,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-16 18:50:02,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2024-11-16 18:50:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 316 states have (on average 1.3322784810126582) internal successors, (421), 320 states have internal predecessors, (421), 45 states have call successors, (45), 8 states have call predecessors, (45), 8 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-16 18:50:02,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 511 transitions. [2024-11-16 18:50:02,653 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 511 transitions. Word has length 111 [2024-11-16 18:50:02,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:02,655 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 511 transitions. [2024-11-16 18:50:02,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:02,655 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 511 transitions. [2024-11-16 18:50:02,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:50:02,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:02,656 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:02,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:50:02,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:02,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:02,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1528875843, now seen corresponding path program 1 times [2024-11-16 18:50:02,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:02,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205940072] [2024-11-16 18:50:02,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:02,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:03,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:03,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205940072] [2024-11-16 18:50:03,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205940072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:03,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:03,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288540526] [2024-11-16 18:50:03,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:03,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:03,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:03,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:03,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:03,059 INFO L87 Difference]: Start difference. First operand 370 states and 511 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:03,278 INFO L93 Difference]: Finished difference Result 719 states and 994 transitions. [2024-11-16 18:50:03,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:50:03,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-16 18:50:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:03,280 INFO L225 Difference]: With dead ends: 719 [2024-11-16 18:50:03,281 INFO L226 Difference]: Without dead ends: 376 [2024-11-16 18:50:03,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:03,282 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 87 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:03,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 557 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-16 18:50:03,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 373. [2024-11-16 18:50:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 318 states have (on average 1.3270440251572326) internal successors, (422), 322 states have internal predecessors, (422), 45 states have call successors, (45), 9 states have call predecessors, (45), 9 states have return successors, (45), 41 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-16 18:50:03,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 512 transitions. [2024-11-16 18:50:03,300 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 512 transitions. Word has length 111 [2024-11-16 18:50:03,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:03,301 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 512 transitions. [2024-11-16 18:50:03,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:03,301 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 512 transitions. [2024-11-16 18:50:03,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:50:03,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:03,302 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:03,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 18:50:03,302 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:03,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash -441621186, now seen corresponding path program 1 times [2024-11-16 18:50:03,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:03,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360432290] [2024-11-16 18:50:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:04,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360432290] [2024-11-16 18:50:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360432290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:04,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:04,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:50:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252337546] [2024-11-16 18:50:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:04,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:50:04,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:50:04,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:04,308 INFO L87 Difference]: Start difference. First operand 373 states and 512 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:05,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:05,148 INFO L93 Difference]: Finished difference Result 1062 states and 1465 transitions. [2024-11-16 18:50:05,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:50:05,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-16 18:50:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:05,151 INFO L225 Difference]: With dead ends: 1062 [2024-11-16 18:50:05,152 INFO L226 Difference]: Without dead ends: 716 [2024-11-16 18:50:05,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:50:05,154 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 216 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:05,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 583 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:50:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-16 18:50:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 708. [2024-11-16 18:50:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 608 states have (on average 1.332236842105263) internal successors, (810), 615 states have internal predecessors, (810), 83 states have call successors, (83), 16 states have call predecessors, (83), 16 states have return successors, (83), 76 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-16 18:50:05,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 976 transitions. [2024-11-16 18:50:05,183 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 976 transitions. Word has length 111 [2024-11-16 18:50:05,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:05,184 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 976 transitions. [2024-11-16 18:50:05,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:05,184 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 976 transitions. [2024-11-16 18:50:05,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:50:05,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:05,185 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:05,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 18:50:05,185 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:05,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1420330627, now seen corresponding path program 1 times [2024-11-16 18:50:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:05,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998888498] [2024-11-16 18:50:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:05,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:05,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998888498] [2024-11-16 18:50:05,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998888498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:05,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:05,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:05,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092033463] [2024-11-16 18:50:05,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:05,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:05,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:05,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:05,563 INFO L87 Difference]: Start difference. First operand 708 states and 976 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:05,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:05,774 INFO L93 Difference]: Finished difference Result 1400 states and 1928 transitions. [2024-11-16 18:50:05,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:50:05,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-16 18:50:05,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:05,776 INFO L225 Difference]: With dead ends: 1400 [2024-11-16 18:50:05,777 INFO L226 Difference]: Without dead ends: 719 [2024-11-16 18:50:05,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:05,778 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 89 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:05,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 513 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:05,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-16 18:50:05,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 550. [2024-11-16 18:50:05,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 487 states have (on average 1.3490759753593429) internal successors, (657), 491 states have internal predecessors, (657), 50 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-16 18:50:05,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 757 transitions. [2024-11-16 18:50:05,797 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 757 transitions. Word has length 111 [2024-11-16 18:50:05,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:05,798 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 757 transitions. [2024-11-16 18:50:05,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:05,798 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 757 transitions. [2024-11-16 18:50:05,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:50:05,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:05,799 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:05,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:50:05,799 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:05,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:05,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1521326972, now seen corresponding path program 1 times [2024-11-16 18:50:05,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:05,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423741939] [2024-11-16 18:50:05,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:05,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,062 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:06,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:06,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423741939] [2024-11-16 18:50:06,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423741939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:06,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:06,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:50:06,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619826609] [2024-11-16 18:50:06,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:06,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:50:06,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:06,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:50:06,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:06,063 INFO L87 Difference]: Start difference. First operand 550 states and 757 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:06,361 INFO L93 Difference]: Finished difference Result 1292 states and 1772 transitions. [2024-11-16 18:50:06,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:50:06,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-16 18:50:06,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:06,364 INFO L225 Difference]: With dead ends: 1292 [2024-11-16 18:50:06,364 INFO L226 Difference]: Without dead ends: 745 [2024-11-16 18:50:06,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:50:06,366 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 127 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:06,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 844 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-11-16 18:50:06,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 548. [2024-11-16 18:50:06,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 485 states have (on average 1.3484536082474228) internal successors, (654), 489 states have internal predecessors, (654), 50 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (50), 46 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-16 18:50:06,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 754 transitions. [2024-11-16 18:50:06,388 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 754 transitions. Word has length 111 [2024-11-16 18:50:06,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:06,389 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 754 transitions. [2024-11-16 18:50:06,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 754 transitions. [2024-11-16 18:50:06,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 18:50:06,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:06,390 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:06,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:50:06,390 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:06,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:06,391 INFO L85 PathProgramCache]: Analyzing trace with hash 260303040, now seen corresponding path program 1 times [2024-11-16 18:50:06,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:06,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699411911] [2024-11-16 18:50:06,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:06,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:06,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:06,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699411911] [2024-11-16 18:50:06,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699411911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:06,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:06,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:50:06,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588727936] [2024-11-16 18:50:06,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:06,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:50:06,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:06,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:50:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:06,600 INFO L87 Difference]: Start difference. First operand 548 states and 754 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:06,790 INFO L93 Difference]: Finished difference Result 1322 states and 1821 transitions. [2024-11-16 18:50:06,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:50:06,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2024-11-16 18:50:06,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:06,795 INFO L225 Difference]: With dead ends: 1322 [2024-11-16 18:50:06,795 INFO L226 Difference]: Without dead ends: 777 [2024-11-16 18:50:06,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:06,797 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 107 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:06,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 430 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:50:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-16 18:50:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 672. [2024-11-16 18:50:06,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 593 states have (on average 1.3440134907251264) internal successors, (797), 597 states have internal predecessors, (797), 63 states have call successors, (63), 15 states have call predecessors, (63), 15 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 923 transitions. [2024-11-16 18:50:06,821 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 923 transitions. Word has length 113 [2024-11-16 18:50:06,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:06,821 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 923 transitions. [2024-11-16 18:50:06,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 923 transitions. [2024-11-16 18:50:06,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 18:50:06,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:06,823 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:06,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 18:50:06,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:06,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:06,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1520750688, now seen corresponding path program 1 times [2024-11-16 18:50:06,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:06,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978697706] [2024-11-16 18:50:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:06,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:06,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:06,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978697706] [2024-11-16 18:50:06,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978697706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:06,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:06,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:50:06,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828834404] [2024-11-16 18:50:06,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:06,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:50:06,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:06,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:50:06,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:06,912 INFO L87 Difference]: Start difference. First operand 672 states and 923 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:06,954 INFO L93 Difference]: Finished difference Result 1235 states and 1698 transitions. [2024-11-16 18:50:06,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:50:06,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2024-11-16 18:50:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:06,957 INFO L225 Difference]: With dead ends: 1235 [2024-11-16 18:50:06,957 INFO L226 Difference]: Without dead ends: 690 [2024-11-16 18:50:06,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:06,958 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 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 [2024-11-16 18:50:06,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:50:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-16 18:50:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2024-11-16 18:50:06,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 611 states have (on average 1.3338788870703764) internal successors, (815), 615 states have internal predecessors, (815), 63 states have call successors, (63), 15 states have call predecessors, (63), 15 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 941 transitions. [2024-11-16 18:50:06,982 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 941 transitions. Word has length 113 [2024-11-16 18:50:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:06,983 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 941 transitions. [2024-11-16 18:50:06,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 941 transitions. [2024-11-16 18:50:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:50:06,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:06,984 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:06,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:50:06,984 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:06,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:06,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1739143845, now seen corresponding path program 1 times [2024-11-16 18:50:06,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:06,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982639578] [2024-11-16 18:50:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:06,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:07,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:07,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982639578] [2024-11-16 18:50:07,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982639578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:07,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:07,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:50:07,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057612084] [2024-11-16 18:50:07,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:07,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:50:07,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:07,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:50:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:07,590 INFO L87 Difference]: Start difference. First operand 690 states and 941 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:07,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:07,957 INFO L93 Difference]: Finished difference Result 1264 states and 1724 transitions. [2024-11-16 18:50:07,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:07,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 115 [2024-11-16 18:50:07,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:07,960 INFO L225 Difference]: With dead ends: 1264 [2024-11-16 18:50:07,960 INFO L226 Difference]: Without dead ends: 701 [2024-11-16 18:50:07,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:50:07,961 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 193 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:07,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 506 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:50:07,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-16 18:50:07,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 696. [2024-11-16 18:50:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 617 states have (on average 1.3306320907617504) internal successors, (821), 621 states have internal predecessors, (821), 63 states have call successors, (63), 15 states have call predecessors, (63), 15 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 947 transitions. [2024-11-16 18:50:07,984 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 947 transitions. Word has length 115 [2024-11-16 18:50:07,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:07,984 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 947 transitions. [2024-11-16 18:50:07,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 947 transitions. [2024-11-16 18:50:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:50:07,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:07,985 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:07,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 18:50:07,985 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:07,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1767772996, now seen corresponding path program 1 times [2024-11-16 18:50:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:07,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834493861] [2024-11-16 18:50:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:07,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,614 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:08,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:08,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834493861] [2024-11-16 18:50:08,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834493861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:08,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:08,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:50:08,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165923975] [2024-11-16 18:50:08,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:08,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:50:08,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:08,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:50:08,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:08,616 INFO L87 Difference]: Start difference. First operand 696 states and 947 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:08,857 INFO L93 Difference]: Finished difference Result 717 states and 973 transitions. [2024-11-16 18:50:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-11-16 18:50:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:08,860 INFO L225 Difference]: With dead ends: 717 [2024-11-16 18:50:08,860 INFO L226 Difference]: Without dead ends: 714 [2024-11-16 18:50:08,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:50:08,861 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 63 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:08,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 547 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:08,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-16 18:50:08,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 714. [2024-11-16 18:50:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 635 states have (on average 1.321259842519685) internal successors, (839), 639 states have internal predecessors, (839), 63 states have call successors, (63), 15 states have call predecessors, (63), 15 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 965 transitions. [2024-11-16 18:50:08,883 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 965 transitions. Word has length 115 [2024-11-16 18:50:08,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:08,883 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 965 transitions. [2024-11-16 18:50:08,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:08,883 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 965 transitions. [2024-11-16 18:50:08,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:50:08,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:08,884 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:08,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:50:08,884 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:08,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:08,885 INFO L85 PathProgramCache]: Analyzing trace with hash 3666490, now seen corresponding path program 1 times [2024-11-16 18:50:08,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:08,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701882109] [2024-11-16 18:50:08,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:08,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:08,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:09,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:09,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701882109] [2024-11-16 18:50:09,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701882109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:09,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:09,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:50:09,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543018081] [2024-11-16 18:50:09,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:09,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:50:09,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:09,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:50:09,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:09,003 INFO L87 Difference]: Start difference. First operand 714 states and 965 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:09,145 INFO L93 Difference]: Finished difference Result 1309 states and 1764 transitions. [2024-11-16 18:50:09,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:50:09,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 115 [2024-11-16 18:50:09,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:09,148 INFO L225 Difference]: With dead ends: 1309 [2024-11-16 18:50:09,148 INFO L226 Difference]: Without dead ends: 722 [2024-11-16 18:50:09,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:09,150 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 96 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:09,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 440 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:50:09,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-11-16 18:50:09,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2024-11-16 18:50:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 641 states have (on average 1.3088923556942278) internal successors, (839), 645 states have internal predecessors, (839), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 965 transitions. [2024-11-16 18:50:09,176 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 965 transitions. Word has length 115 [2024-11-16 18:50:09,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:09,176 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 965 transitions. [2024-11-16 18:50:09,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:09,176 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 965 transitions. [2024-11-16 18:50:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:50:09,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:09,178 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:09,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 18:50:09,178 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:09,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:09,179 INFO L85 PathProgramCache]: Analyzing trace with hash -192847015, now seen corresponding path program 1 times [2024-11-16 18:50:09,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:09,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051054829] [2024-11-16 18:50:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:09,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:09,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:09,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051054829] [2024-11-16 18:50:09,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051054829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:09,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:09,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:50:09,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164215656] [2024-11-16 18:50:09,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:09,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:50:09,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:09,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:50:09,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:09,278 INFO L87 Difference]: Start difference. First operand 722 states and 965 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:09,318 INFO L93 Difference]: Finished difference Result 1335 states and 1782 transitions. [2024-11-16 18:50:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:50:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 115 [2024-11-16 18:50:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:09,322 INFO L225 Difference]: With dead ends: 1335 [2024-11-16 18:50:09,323 INFO L226 Difference]: Without dead ends: 740 [2024-11-16 18:50:09,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:09,324 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:09,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 536 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:50:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-16 18:50:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2024-11-16 18:50:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 659 states have (on average 1.300455235204856) internal successors, (857), 663 states have internal predecessors, (857), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 983 transitions. [2024-11-16 18:50:09,355 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 983 transitions. Word has length 115 [2024-11-16 18:50:09,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:09,355 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 983 transitions. [2024-11-16 18:50:09,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:09,356 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 983 transitions. [2024-11-16 18:50:09,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:50:09,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:09,357 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:09,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 18:50:09,357 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:09,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:09,357 INFO L85 PathProgramCache]: Analyzing trace with hash 119450798, now seen corresponding path program 1 times [2024-11-16 18:50:09,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:09,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050530721] [2024-11-16 18:50:09,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:09,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:09,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:09,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050530721] [2024-11-16 18:50:09,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050530721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:09,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:09,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:09,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674629297] [2024-11-16 18:50:09,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:09,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:09,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:09,454 INFO L87 Difference]: Start difference. First operand 740 states and 983 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:09,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:09,498 INFO L93 Difference]: Finished difference Result 1377 states and 1824 transitions. [2024-11-16 18:50:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:50:09,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 118 [2024-11-16 18:50:09,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:09,501 INFO L225 Difference]: With dead ends: 1377 [2024-11-16 18:50:09,501 INFO L226 Difference]: Without dead ends: 764 [2024-11-16 18:50:09,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:09,503 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:09,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 665 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:50:09,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-16 18:50:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 746. [2024-11-16 18:50:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 665 states have (on average 1.2977443609022556) internal successors, (863), 669 states have internal predecessors, (863), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 989 transitions. [2024-11-16 18:50:09,528 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 989 transitions. Word has length 118 [2024-11-16 18:50:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:09,528 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 989 transitions. [2024-11-16 18:50:09,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:09,528 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 989 transitions. [2024-11-16 18:50:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:50:09,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:09,529 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:09,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:50:09,529 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:09,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:09,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1211540513, now seen corresponding path program 1 times [2024-11-16 18:50:09,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:09,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168740540] [2024-11-16 18:50:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:09,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:09,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:09,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168740540] [2024-11-16 18:50:09,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168740540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:09,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:09,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:50:09,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824433202] [2024-11-16 18:50:09,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:09,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:50:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:09,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:50:09,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:09,927 INFO L87 Difference]: Start difference. First operand 746 states and 989 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:10,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:10,137 INFO L93 Difference]: Finished difference Result 1370 states and 1811 transitions. [2024-11-16 18:50:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:50:10,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 120 [2024-11-16 18:50:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:10,141 INFO L225 Difference]: With dead ends: 1370 [2024-11-16 18:50:10,141 INFO L226 Difference]: Without dead ends: 751 [2024-11-16 18:50:10,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:10,142 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 84 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:10,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 315 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-16 18:50:10,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 746. [2024-11-16 18:50:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 665 states have (on average 1.2932330827067668) internal successors, (860), 669 states have internal predecessors, (860), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 986 transitions. [2024-11-16 18:50:10,166 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 986 transitions. Word has length 120 [2024-11-16 18:50:10,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:10,166 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 986 transitions. [2024-11-16 18:50:10,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:10,166 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 986 transitions. [2024-11-16 18:50:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:50:10,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:10,167 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:10,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:50:10,167 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:10,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:10,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1801453399, now seen corresponding path program 1 times [2024-11-16 18:50:10,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:10,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366387247] [2024-11-16 18:50:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:10,634 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:10,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:10,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366387247] [2024-11-16 18:50:10,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366387247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:10,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:10,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:10,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642610963] [2024-11-16 18:50:10,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:10,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:10,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:10,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:10,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:10,636 INFO L87 Difference]: Start difference. First operand 746 states and 986 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:10,855 INFO L93 Difference]: Finished difference Result 1370 states and 1805 transitions. [2024-11-16 18:50:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:50:10,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 124 [2024-11-16 18:50:10,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:10,860 INFO L225 Difference]: With dead ends: 1370 [2024-11-16 18:50:10,860 INFO L226 Difference]: Without dead ends: 751 [2024-11-16 18:50:10,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:10,861 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 101 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:10,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 382 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:10,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-16 18:50:10,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 746. [2024-11-16 18:50:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 665 states have (on average 1.2887218045112783) internal successors, (857), 669 states have internal predecessors, (857), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 983 transitions. [2024-11-16 18:50:10,892 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 983 transitions. Word has length 124 [2024-11-16 18:50:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:10,893 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 983 transitions. [2024-11-16 18:50:10,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 983 transitions. [2024-11-16 18:50:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:50:10,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:10,894 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:10,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:50:10,894 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:10,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash 966239023, now seen corresponding path program 1 times [2024-11-16 18:50:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:10,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146362748] [2024-11-16 18:50:10,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:11,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:11,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146362748] [2024-11-16 18:50:11,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146362748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:11,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:11,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:11,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349135949] [2024-11-16 18:50:11,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:11,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:11,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:11,322 INFO L87 Difference]: Start difference. First operand 746 states and 983 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:11,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:11,569 INFO L93 Difference]: Finished difference Result 1370 states and 1799 transitions. [2024-11-16 18:50:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:11,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 125 [2024-11-16 18:50:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:11,573 INFO L225 Difference]: With dead ends: 1370 [2024-11-16 18:50:11,573 INFO L226 Difference]: Without dead ends: 751 [2024-11-16 18:50:11,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:11,574 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 83 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:11,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 360 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:11,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-16 18:50:11,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 746. [2024-11-16 18:50:11,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 665 states have (on average 1.2842105263157895) internal successors, (854), 669 states have internal predecessors, (854), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:11,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 980 transitions. [2024-11-16 18:50:11,603 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 980 transitions. Word has length 125 [2024-11-16 18:50:11,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:11,603 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 980 transitions. [2024-11-16 18:50:11,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:11,603 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 980 transitions. [2024-11-16 18:50:11,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 18:50:11,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:11,604 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:11,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 18:50:11,604 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:11,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:11,604 INFO L85 PathProgramCache]: Analyzing trace with hash -971628891, now seen corresponding path program 1 times [2024-11-16 18:50:11,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:11,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822279825] [2024-11-16 18:50:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:11,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:12,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:12,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822279825] [2024-11-16 18:50:12,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822279825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:12,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:12,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:50:12,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332956428] [2024-11-16 18:50:12,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:12,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:50:12,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:12,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:50:12,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:12,034 INFO L87 Difference]: Start difference. First operand 746 states and 980 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:12,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:12,284 INFO L93 Difference]: Finished difference Result 1370 states and 1793 transitions. [2024-11-16 18:50:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:12,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 126 [2024-11-16 18:50:12,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:12,287 INFO L225 Difference]: With dead ends: 1370 [2024-11-16 18:50:12,288 INFO L226 Difference]: Without dead ends: 751 [2024-11-16 18:50:12,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:50:12,289 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 80 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:12,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 448 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:12,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-16 18:50:12,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 746. [2024-11-16 18:50:12,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 665 states have (on average 1.2796992481203007) internal successors, (851), 669 states have internal predecessors, (851), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 59 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-16 18:50:12,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 977 transitions. [2024-11-16 18:50:12,312 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 977 transitions. Word has length 126 [2024-11-16 18:50:12,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:12,312 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 977 transitions. [2024-11-16 18:50:12,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:12,313 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 977 transitions. [2024-11-16 18:50:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 18:50:12,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:12,313 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:12,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 18:50:12,314 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:12,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash -581071806, now seen corresponding path program 1 times [2024-11-16 18:50:12,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:12,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262971178] [2024-11-16 18:50:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:12,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:13,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:13,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:13,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262971178] [2024-11-16 18:50:13,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262971178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:13,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:13,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:50:13,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726233442] [2024-11-16 18:50:13,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:13,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:50:13,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:13,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:50:13,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:50:13,098 INFO L87 Difference]: Start difference. First operand 746 states and 977 transitions. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:13,790 INFO L93 Difference]: Finished difference Result 2261 states and 2904 transitions. [2024-11-16 18:50:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 18:50:13,791 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-16 18:50:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:13,797 INFO L225 Difference]: With dead ends: 2261 [2024-11-16 18:50:13,797 INFO L226 Difference]: Without dead ends: 1642 [2024-11-16 18:50:13,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2024-11-16 18:50:13,801 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 174 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:13,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1149 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:50:13,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-11-16 18:50:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1362. [2024-11-16 18:50:13,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1203 states have (on average 1.2418952618453865) internal successors, (1494), 1213 states have internal predecessors, (1494), 123 states have call successors, (123), 35 states have call predecessors, (123), 35 states have return successors, (123), 113 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-16 18:50:13,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1740 transitions. [2024-11-16 18:50:13,855 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1740 transitions. Word has length 128 [2024-11-16 18:50:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:13,856 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1740 transitions. [2024-11-16 18:50:13,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 14 states have internal predecessors, (66), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 18:50:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1740 transitions. [2024-11-16 18:50:13,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 18:50:13,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:13,858 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:13,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 18:50:13,859 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:13,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 127185129, now seen corresponding path program 1 times [2024-11-16 18:50:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:13,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134238577] [2024-11-16 18:50:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:13,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:14,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:14,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134238577] [2024-11-16 18:50:14,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134238577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:14,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:14,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:50:14,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715200789] [2024-11-16 18:50:14,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:14,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:50:14,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:50:14,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:50:14,269 INFO L87 Difference]: Start difference. First operand 1362 states and 1740 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:14,466 INFO L93 Difference]: Finished difference Result 2013 states and 2578 transitions. [2024-11-16 18:50:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:50:14,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 131 [2024-11-16 18:50:14,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:14,471 INFO L225 Difference]: With dead ends: 2013 [2024-11-16 18:50:14,471 INFO L226 Difference]: Without dead ends: 1369 [2024-11-16 18:50:14,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:14,472 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 92 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:14,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 316 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-16 18:50:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1362. [2024-11-16 18:50:14,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1203 states have (on average 1.2352452202826267) internal successors, (1486), 1213 states have internal predecessors, (1486), 123 states have call successors, (123), 35 states have call predecessors, (123), 35 states have return successors, (123), 113 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-16 18:50:14,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1732 transitions. [2024-11-16 18:50:14,523 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1732 transitions. Word has length 131 [2024-11-16 18:50:14,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:14,523 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1732 transitions. [2024-11-16 18:50:14,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:14,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1732 transitions. [2024-11-16 18:50:14,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 18:50:14,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:14,524 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:14,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 18:50:14,525 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:14,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:14,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1116540920, now seen corresponding path program 1 times [2024-11-16 18:50:14,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:14,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973165435] [2024-11-16 18:50:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:14,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:14,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:14,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973165435] [2024-11-16 18:50:14,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973165435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:14,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:14,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:14,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689783242] [2024-11-16 18:50:14,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:14,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:14,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:14,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:14,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:14,963 INFO L87 Difference]: Start difference. First operand 1362 states and 1732 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:15,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:15,249 INFO L93 Difference]: Finished difference Result 2025 states and 2586 transitions. [2024-11-16 18:50:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:50:15,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 134 [2024-11-16 18:50:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:15,254 INFO L225 Difference]: With dead ends: 2025 [2024-11-16 18:50:15,254 INFO L226 Difference]: Without dead ends: 1369 [2024-11-16 18:50:15,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:15,256 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 98 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:15,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 385 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:15,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-16 18:50:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1362. [2024-11-16 18:50:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1203 states have (on average 1.228595178719867) internal successors, (1478), 1213 states have internal predecessors, (1478), 123 states have call successors, (123), 35 states have call predecessors, (123), 35 states have return successors, (123), 113 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-16 18:50:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1724 transitions. [2024-11-16 18:50:15,334 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1724 transitions. Word has length 134 [2024-11-16 18:50:15,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:15,334 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1724 transitions. [2024-11-16 18:50:15,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1724 transitions. [2024-11-16 18:50:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:50:15,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:15,335 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:15,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 18:50:15,336 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:15,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:15,336 INFO L85 PathProgramCache]: Analyzing trace with hash 173539968, now seen corresponding path program 1 times [2024-11-16 18:50:15,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:15,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60333635] [2024-11-16 18:50:15,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:15,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:15,773 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:15,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:15,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60333635] [2024-11-16 18:50:15,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60333635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:15,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:15,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:50:15,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011668206] [2024-11-16 18:50:15,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:15,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:50:15,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:15,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:50:15,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:50:15,774 INFO L87 Difference]: Start difference. First operand 1362 states and 1724 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:15,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:15,994 INFO L93 Difference]: Finished difference Result 2025 states and 2574 transitions. [2024-11-16 18:50:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 135 [2024-11-16 18:50:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:15,999 INFO L225 Difference]: With dead ends: 2025 [2024-11-16 18:50:15,999 INFO L226 Difference]: Without dead ends: 1369 [2024-11-16 18:50:16,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:50:16,001 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 91 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:16,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 370 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:16,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-16 18:50:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1362. [2024-11-16 18:50:16,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1203 states have (on average 1.2219451371571073) internal successors, (1470), 1213 states have internal predecessors, (1470), 123 states have call successors, (123), 35 states have call predecessors, (123), 35 states have return successors, (123), 113 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-16 18:50:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1716 transitions. [2024-11-16 18:50:16,047 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1716 transitions. Word has length 135 [2024-11-16 18:50:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:16,048 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1716 transitions. [2024-11-16 18:50:16,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:16,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1716 transitions. [2024-11-16 18:50:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-16 18:50:16,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:16,049 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:16,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 18:50:16,049 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:16,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1976120651, now seen corresponding path program 1 times [2024-11-16 18:50:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:16,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404919103] [2024-11-16 18:50:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:16,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404919103] [2024-11-16 18:50:16,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404919103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:16,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:16,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:50:16,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83869773] [2024-11-16 18:50:16,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:16,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:50:16,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:16,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:50:16,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:50:16,496 INFO L87 Difference]: Start difference. First operand 1362 states and 1716 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:16,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:16,759 INFO L93 Difference]: Finished difference Result 2013 states and 2542 transitions. [2024-11-16 18:50:16,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:50:16,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 136 [2024-11-16 18:50:16,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:16,764 INFO L225 Difference]: With dead ends: 2013 [2024-11-16 18:50:16,764 INFO L226 Difference]: Without dead ends: 1369 [2024-11-16 18:50:16,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:50:16,766 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 89 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:16,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 444 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:50:16,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2024-11-16 18:50:16,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1362. [2024-11-16 18:50:16,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1203 states have (on average 1.2152950955943476) internal successors, (1462), 1213 states have internal predecessors, (1462), 123 states have call successors, (123), 35 states have call predecessors, (123), 35 states have return successors, (123), 113 states have call predecessors, (123), 123 states have call successors, (123) [2024-11-16 18:50:16,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1708 transitions. [2024-11-16 18:50:16,811 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1708 transitions. Word has length 136 [2024-11-16 18:50:16,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:16,812 INFO L471 AbstractCegarLoop]: Abstraction has 1362 states and 1708 transitions. [2024-11-16 18:50:16,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:16,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1708 transitions. [2024-11-16 18:50:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 18:50:16,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:16,813 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:16,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 18:50:16,813 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:16,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1904129656, now seen corresponding path program 1 times [2024-11-16 18:50:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:16,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294799888] [2024-11-16 18:50:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:50:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:50:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:50:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:50:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:50:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:50:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:50:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:50:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:50:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:50:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:50:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:50:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:50:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-16 18:50:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:50:17,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294799888] [2024-11-16 18:50:17,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294799888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:50:17,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:50:17,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 18:50:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132718334] [2024-11-16 18:50:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:50:17,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 18:50:17,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:50:17,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 18:50:17,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-16 18:50:17,358 INFO L87 Difference]: Start difference. First operand 1362 states and 1708 transitions. Second operand has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:18,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:50:18,180 INFO L93 Difference]: Finished difference Result 3365 states and 4229 transitions. [2024-11-16 18:50:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-16 18:50:18,181 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 138 [2024-11-16 18:50:18,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:50:18,192 INFO L225 Difference]: With dead ends: 3365 [2024-11-16 18:50:18,192 INFO L226 Difference]: Without dead ends: 2746 [2024-11-16 18:50:18,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=1015, Unknown=0, NotChecked=0, Total=1190 [2024-11-16 18:50:18,194 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 428 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:50:18,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1334 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:50:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-11-16 18:50:18,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1242. [2024-11-16 18:50:18,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1108 states have (on average 1.2373646209386282) internal successors, (1371), 1117 states have internal predecessors, (1371), 103 states have call successors, (103), 30 states have call predecessors, (103), 30 states have return successors, (103), 94 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-16 18:50:18,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1577 transitions. [2024-11-16 18:50:18,242 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1577 transitions. Word has length 138 [2024-11-16 18:50:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:50:18,242 INFO L471 AbstractCegarLoop]: Abstraction has 1242 states and 1577 transitions. [2024-11-16 18:50:18,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-16 18:50:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1577 transitions. [2024-11-16 18:50:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-16 18:50:18,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:50:18,244 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:50:18,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 18:50:18,244 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:50:18,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:50:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1194388807, now seen corresponding path program 1 times [2024-11-16 18:50:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:50:18,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138838953] [2024-11-16 18:50:18,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:50:18,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:50:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:50:19,762 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2024-11-16 18:50:20,917 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: incomplete [2024-11-16 18:50:39,094 WARN L286 SmtUtils]: Spent 6.90s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-16 18:50:47,871 WARN L286 SmtUtils]: Spent 8.78s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-16 18:50:59,870 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-16 18:51:07,371 WARN L286 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-16 18:51:12,495 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)