./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c --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/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c -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 5c6d968f3bfd626cfd1fff51fa64657ab37ae457da61332877d0ea5ab7fc90f2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:11:07,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:11:07,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:11:07,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:11:07,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:11:07,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:11:07,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:11:07,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:11:07,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:11:07,908 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:11:07,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:11:07,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:11:07,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:11:07,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:11:07,910 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:11:07,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:11:07,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:11:07,911 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:11:07,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:11:07,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:11:07,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:11:07,912 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:11:07,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:11:07,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:11:07,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:11:07,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:11:07,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:11:07,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:11:07,915 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:11:07,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:11:07,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:11:07,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:11:07,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:11:07,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:11:07,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:11:07,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:11:07,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:11:07,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:11:07,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:11:07,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:11:07,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:11:07,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:11:07,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c6d968f3bfd626cfd1fff51fa64657ab37ae457da61332877d0ea5ab7fc90f2 [2024-11-16 08:11:08,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:11:08,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:11:08,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:11:08,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:11:08,179 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:11:08,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c [2024-11-16 08:11:09,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:11:09,874 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:11:09,874 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c [2024-11-16 08:11:09,893 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0774985/550cb714e2e944afab41fbd361d9d0a5/FLAG064a813ba [2024-11-16 08:11:10,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0774985/550cb714e2e944afab41fbd361d9d0a5 [2024-11-16 08:11:10,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:11:10,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:11:10,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:11:10,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:11:10,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:11:10,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3222b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10, skipping insertion in model container [2024-11-16 08:11:10,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,271 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:11:10,652 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/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c[14698,14711] [2024-11-16 08:11:10,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:11:10,696 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:11:10,776 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/seq-mthreaded/pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c[14698,14711] [2024-11-16 08:11:10,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:11:10,796 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:11:10,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10 WrapperNode [2024-11-16 08:11:10,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:11:10,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:11:10,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:11:10,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:11:10,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,863 INFO L138 Inliner]: procedures = 32, calls = 48, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 509 [2024-11-16 08:11:10,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:11:10,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:11:10,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:11:10,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:11:10,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,880 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,907 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:11:10,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,918 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:11:10,936 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:11:10,936 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:11:10,937 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:11:10,937 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (1/1) ... [2024-11-16 08:11:10,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:11:10,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:10,980 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 08:11:10,984 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 08:11:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-11-16 08:11:11,036 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-11-16 08:11:11,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:11:11,037 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-11-16 08:11:11,037 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-11-16 08:11:11,037 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-16 08:11:11,037 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-16 08:11:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-11-16 08:11:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-11-16 08:11:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 08:11:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 08:11:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:11:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-11-16 08:11:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-11-16 08:11:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:11:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:11:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-11-16 08:11:11,038 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-11-16 08:11:11,169 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:11:11,173 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:11:11,762 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-16 08:11:11,762 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:11:11,791 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:11:11,795 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:11:11,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:11:11 BoogieIcfgContainer [2024-11-16 08:11:11,796 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:11:11,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:11:11,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:11:11,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:11:11,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:11:10" (1/3) ... [2024-11-16 08:11:11,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e08b7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:11:11, skipping insertion in model container [2024-11-16 08:11:11,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:11:10" (2/3) ... [2024-11-16 08:11:11,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e08b7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:11:11, skipping insertion in model container [2024-11-16 08:11:11,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:11:11" (3/3) ... [2024-11-16 08:11:11,813 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.ufo.BOUNDED-10.pals.c [2024-11-16 08:11:11,832 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:11:11,833 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:11:11,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:11:11,907 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;@15d8d154, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:11:11,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:11:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 149 states have (on average 1.523489932885906) internal successors, (227), 150 states have internal predecessors, (227), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:11:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 08:11:11,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:11,920 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 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 08:11:11,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:11,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:11,925 INFO L85 PathProgramCache]: Analyzing trace with hash 540944041, now seen corresponding path program 1 times [2024-11-16 08:11:11,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:11,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518261927] [2024-11-16 08:11:11,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:11,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:12,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 08:11:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:11:12,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:12,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518261927] [2024-11-16 08:11:12,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518261927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:12,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:12,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:11:12,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475939731] [2024-11-16 08:11:12,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:12,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:11:12,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:12,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:11:12,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:11:12,265 INFO L87 Difference]: Start difference. First operand has 189 states, 149 states have (on average 1.523489932885906) internal successors, (227), 150 states have internal predecessors, (227), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:11:12,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:12,316 INFO L93 Difference]: Finished difference Result 361 states and 577 transitions. [2024-11-16 08:11:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:11:12,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-16 08:11:12,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:12,325 INFO L225 Difference]: With dead ends: 361 [2024-11-16 08:11:12,325 INFO L226 Difference]: Without dead ends: 184 [2024-11-16 08:11:12,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 08:11:12,332 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:12,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:12,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-16 08:11:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2024-11-16 08:11:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 1.5103448275862068) internal successors, (219), 145 states have internal predecessors, (219), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:11:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 281 transitions. [2024-11-16 08:11:12,376 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 281 transitions. Word has length 30 [2024-11-16 08:11:12,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:12,377 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 281 transitions. [2024-11-16 08:11:12,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:11:12,377 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 281 transitions. [2024-11-16 08:11:12,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 08:11:12,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:12,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 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 08:11:12,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:11:12,379 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:12,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash 473937288, now seen corresponding path program 1 times [2024-11-16 08:11:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:12,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121286745] [2024-11-16 08:11:12,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:12,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:12,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 08:11:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:11:12,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121286745] [2024-11-16 08:11:12,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121286745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:12,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:12,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:11:12,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017892196] [2024-11-16 08:11:12,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:12,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:11:12,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:12,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:11:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:11:12,644 INFO L87 Difference]: Start difference. First operand 184 states and 281 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:11:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:12,762 INFO L93 Difference]: Finished difference Result 473 states and 729 transitions. [2024-11-16 08:11:12,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:11:12,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-16 08:11:12,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:12,767 INFO L225 Difference]: With dead ends: 473 [2024-11-16 08:11:12,767 INFO L226 Difference]: Without dead ends: 303 [2024-11-16 08:11:12,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 08:11:12,770 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 140 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:12,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1352 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:12,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-16 08:11:12,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 184. [2024-11-16 08:11:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 1.4275862068965517) internal successors, (207), 145 states have internal predecessors, (207), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:11:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 269 transitions. [2024-11-16 08:11:12,795 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 269 transitions. Word has length 30 [2024-11-16 08:11:12,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:12,795 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 269 transitions. [2024-11-16 08:11:12,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:11:12,795 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 269 transitions. [2024-11-16 08:11:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 08:11:12,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:12,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:12,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:11:12,797 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:12,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:12,798 INFO L85 PathProgramCache]: Analyzing trace with hash 321188375, now seen corresponding path program 1 times [2024-11-16 08:11:12,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:12,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909260445] [2024-11-16 08:11:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:12,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:11:13,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:13,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909260445] [2024-11-16 08:11:13,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909260445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:13,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:13,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:13,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384569718] [2024-11-16 08:11:13,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:13,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:13,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:13,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:13,103 INFO L87 Difference]: Start difference. First operand 184 states and 269 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:11:13,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:13,168 INFO L93 Difference]: Finished difference Result 355 states and 528 transitions. [2024-11-16 08:11:13,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:13,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2024-11-16 08:11:13,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:13,171 INFO L225 Difference]: With dead ends: 355 [2024-11-16 08:11:13,171 INFO L226 Difference]: Without dead ends: 188 [2024-11-16 08:11:13,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:13,173 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 3 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:13,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 779 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:13,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-16 08:11:13,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2024-11-16 08:11:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 148 states have (on average 1.4189189189189189) internal successors, (210), 148 states have internal predecessors, (210), 31 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-16 08:11:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 272 transitions. [2024-11-16 08:11:13,187 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 272 transitions. Word has length 41 [2024-11-16 08:11:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:13,187 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 272 transitions. [2024-11-16 08:11:13,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-16 08:11:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 272 transitions. [2024-11-16 08:11:13,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 08:11:13,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:13,189 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:13,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:11:13,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:13,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:13,190 INFO L85 PathProgramCache]: Analyzing trace with hash -100436192, now seen corresponding path program 1 times [2024-11-16 08:11:13,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:13,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300087664] [2024-11-16 08:11:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:13,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 08:11:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:13,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300087664] [2024-11-16 08:11:13,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300087664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:13,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:13,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:11:13,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955191070] [2024-11-16 08:11:13,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:13,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:11:13,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:13,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:11:13,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:11:13,307 INFO L87 Difference]: Start difference. First operand 188 states and 272 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:13,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:13,350 INFO L93 Difference]: Finished difference Result 516 states and 757 transitions. [2024-11-16 08:11:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:11:13,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2024-11-16 08:11:13,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:13,357 INFO L225 Difference]: With dead ends: 516 [2024-11-16 08:11:13,357 INFO L226 Difference]: Without dead ends: 345 [2024-11-16 08:11:13,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:11:13,361 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 218 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:13,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 540 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-16 08:11:13,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 337. [2024-11-16 08:11:13,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 260 states have (on average 1.4423076923076923) internal successors, (375), 261 states have internal predecessors, (375), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 08:11:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 495 transitions. [2024-11-16 08:11:13,391 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 495 transitions. Word has length 57 [2024-11-16 08:11:13,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:13,392 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 495 transitions. [2024-11-16 08:11:13,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:13,392 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 495 transitions. [2024-11-16 08:11:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 08:11:13,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:13,394 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:13,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:11:13,394 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:13,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:13,395 INFO L85 PathProgramCache]: Analyzing trace with hash 238282372, now seen corresponding path program 1 times [2024-11-16 08:11:13,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:13,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117152021] [2024-11-16 08:11:13,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:13,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 08:11:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:13,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:13,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117152021] [2024-11-16 08:11:13,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117152021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:13,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:13,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:11:13,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603008224] [2024-11-16 08:11:13,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:13,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:11:13,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:13,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:11:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:11:13,526 INFO L87 Difference]: Start difference. First operand 337 states and 495 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:13,596 INFO L93 Difference]: Finished difference Result 946 states and 1402 transitions. [2024-11-16 08:11:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:11:13,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-16 08:11:13,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:13,607 INFO L225 Difference]: With dead ends: 946 [2024-11-16 08:11:13,609 INFO L226 Difference]: Without dead ends: 626 [2024-11-16 08:11:13,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:11:13,615 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 220 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:13,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 564 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-16 08:11:13,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 619. [2024-11-16 08:11:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 470 states have (on average 1.4553191489361703) internal successors, (684), 473 states have internal predecessors, (684), 117 states have call successors, (117), 31 states have call predecessors, (117), 31 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-16 08:11:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 918 transitions. [2024-11-16 08:11:13,679 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 918 transitions. Word has length 58 [2024-11-16 08:11:13,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:13,682 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 918 transitions. [2024-11-16 08:11:13,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:13,683 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 918 transitions. [2024-11-16 08:11:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-16 08:11:13,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:13,685 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:13,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:11:13,685 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:13,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:13,686 INFO L85 PathProgramCache]: Analyzing trace with hash -272251805, now seen corresponding path program 1 times [2024-11-16 08:11:13,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:13,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986005249] [2024-11-16 08:11:13,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:13,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 08:11:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:13,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:13,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:13,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986005249] [2024-11-16 08:11:13,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986005249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:13,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:13,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:11:13,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525720871] [2024-11-16 08:11:13,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:13,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:11:13,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:13,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:11:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:13,852 INFO L87 Difference]: Start difference. First operand 619 states and 918 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:14,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:14,050 INFO L93 Difference]: Finished difference Result 1336 states and 1973 transitions. [2024-11-16 08:11:14,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:14,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-16 08:11:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:14,058 INFO L225 Difference]: With dead ends: 1336 [2024-11-16 08:11:14,059 INFO L226 Difference]: Without dead ends: 734 [2024-11-16 08:11:14,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 08:11:14,062 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 389 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:14,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 692 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-11-16 08:11:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 714. [2024-11-16 08:11:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 552 states have (on average 1.4365942028985508) internal successors, (793), 555 states have internal predecessors, (793), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:14,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1041 transitions. [2024-11-16 08:11:14,109 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1041 transitions. Word has length 58 [2024-11-16 08:11:14,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:14,110 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 1041 transitions. [2024-11-16 08:11:14,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:14,110 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1041 transitions. [2024-11-16 08:11:14,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 08:11:14,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:14,112 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:11:14,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:11:14,112 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:14,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash 773855986, now seen corresponding path program 1 times [2024-11-16 08:11:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:14,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783785833] [2024-11-16 08:11:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 08:11:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:14,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:14,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783785833] [2024-11-16 08:11:14,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783785833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:14,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:14,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:11:14,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367099774] [2024-11-16 08:11:14,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:14,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:11:14,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:14,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:11:14,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:14,293 INFO L87 Difference]: Start difference. First operand 714 states and 1041 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:14,469 INFO L93 Difference]: Finished difference Result 1340 states and 1973 transitions. [2024-11-16 08:11:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 59 [2024-11-16 08:11:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:14,476 INFO L225 Difference]: With dead ends: 1340 [2024-11-16 08:11:14,477 INFO L226 Difference]: Without dead ends: 738 [2024-11-16 08:11:14,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 08:11:14,480 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 389 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:14,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 692 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-16 08:11:14,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 726. [2024-11-16 08:11:14,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 564 states have (on average 1.427304964539007) internal successors, (805), 567 states have internal predecessors, (805), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1053 transitions. [2024-11-16 08:11:14,532 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1053 transitions. Word has length 59 [2024-11-16 08:11:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:14,532 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1053 transitions. [2024-11-16 08:11:14,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1053 transitions. [2024-11-16 08:11:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 08:11:14,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:14,534 INFO L215 NwaCegarLoop]: trace histogram [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, 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 08:11:14,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:11:14,535 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:14,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1286626675, now seen corresponding path program 1 times [2024-11-16 08:11:14,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:14,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014687519] [2024-11-16 08:11:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:14,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 08:11:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:14,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:14,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014687519] [2024-11-16 08:11:14,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014687519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:14,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:14,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:14,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687423965] [2024-11-16 08:11:14,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:14,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:14,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:14,760 INFO L87 Difference]: Start difference. First operand 726 states and 1053 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:14,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:14,925 INFO L93 Difference]: Finished difference Result 1328 states and 1953 transitions. [2024-11-16 08:11:14,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:14,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 62 [2024-11-16 08:11:14,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:14,935 INFO L225 Difference]: With dead ends: 1328 [2024-11-16 08:11:14,935 INFO L226 Difference]: Without dead ends: 726 [2024-11-16 08:11:14,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:14,940 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 67 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:14,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 686 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-16 08:11:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 726. [2024-11-16 08:11:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 564 states have (on average 1.4202127659574468) internal successors, (801), 567 states have internal predecessors, (801), 124 states have call successors, (124), 37 states have call predecessors, (124), 37 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:14,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 1049 transitions. [2024-11-16 08:11:14,993 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 1049 transitions. Word has length 62 [2024-11-16 08:11:14,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:14,994 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 1049 transitions. [2024-11-16 08:11:14,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-16 08:11:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 1049 transitions. [2024-11-16 08:11:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:11:14,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:14,995 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 08:11:14,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:11:14,995 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:14,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:14,996 INFO L85 PathProgramCache]: Analyzing trace with hash -863367655, now seen corresponding path program 1 times [2024-11-16 08:11:14,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:14,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722726199] [2024-11-16 08:11:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:14,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:15,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:15,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722726199] [2024-11-16 08:11:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722726199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:15,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390861518] [2024-11-16 08:11:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:15,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:15,230 INFO L87 Difference]: Start difference. First operand 726 states and 1049 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 08:11:15,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:15,295 INFO L93 Difference]: Finished difference Result 1348 states and 1977 transitions. [2024-11-16 08:11:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:15,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2024-11-16 08:11:15,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:15,301 INFO L225 Difference]: With dead ends: 1348 [2024-11-16 08:11:15,301 INFO L226 Difference]: Without dead ends: 746 [2024-11-16 08:11:15,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:15,305 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 4 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:15,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 791 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:15,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-11-16 08:11:15,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2024-11-16 08:11:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 580 states have (on average 1.4086206896551725) internal successors, (817), 583 states have internal predecessors, (817), 124 states have call successors, (124), 41 states have call predecessors, (124), 41 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1065 transitions. [2024-11-16 08:11:15,348 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1065 transitions. Word has length 63 [2024-11-16 08:11:15,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:15,349 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 1065 transitions. [2024-11-16 08:11:15,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-16 08:11:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1065 transitions. [2024-11-16 08:11:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:11:15,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:15,351 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:15,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:11:15,352 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:15,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:15,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1421745801, now seen corresponding path program 1 times [2024-11-16 08:11:15,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:15,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139179439] [2024-11-16 08:11:15,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:15,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:15,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:15,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139179439] [2024-11-16 08:11:15,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139179439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:15,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:15,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:15,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936785609] [2024-11-16 08:11:15,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:15,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:15,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:15,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:15,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:15,582 INFO L87 Difference]: Start difference. First operand 746 states and 1065 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 08:11:15,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:15,668 INFO L93 Difference]: Finished difference Result 1388 states and 2021 transitions. [2024-11-16 08:11:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:15,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 71 [2024-11-16 08:11:15,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:15,674 INFO L225 Difference]: With dead ends: 1388 [2024-11-16 08:11:15,674 INFO L226 Difference]: Without dead ends: 766 [2024-11-16 08:11:15,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:15,677 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 4 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:15,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 777 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:15,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-16 08:11:15,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2024-11-16 08:11:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 596 states have (on average 1.3976510067114094) internal successors, (833), 599 states have internal predecessors, (833), 124 states have call successors, (124), 45 states have call predecessors, (124), 45 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1081 transitions. [2024-11-16 08:11:15,724 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1081 transitions. Word has length 71 [2024-11-16 08:11:15,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:15,724 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1081 transitions. [2024-11-16 08:11:15,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 08:11:15,725 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1081 transitions. [2024-11-16 08:11:15,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:11:15,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:15,729 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:15,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:11:15,730 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:15,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:15,730 INFO L85 PathProgramCache]: Analyzing trace with hash -912716527, now seen corresponding path program 1 times [2024-11-16 08:11:15,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:15,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137846499] [2024-11-16 08:11:15,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:15,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:15,881 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:15,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:15,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137846499] [2024-11-16 08:11:15,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137846499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:15,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:15,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:15,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129001455] [2024-11-16 08:11:15,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:15,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:15,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:15,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:15,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:15,883 INFO L87 Difference]: Start difference. First operand 766 states and 1081 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:11:15,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:15,971 INFO L93 Difference]: Finished difference Result 1424 states and 2037 transitions. [2024-11-16 08:11:15,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:15,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-16 08:11:15,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:15,976 INFO L225 Difference]: With dead ends: 1424 [2024-11-16 08:11:15,977 INFO L226 Difference]: Without dead ends: 782 [2024-11-16 08:11:15,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:15,979 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 3 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:15,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 787 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-16 08:11:16,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2024-11-16 08:11:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 608 states have (on average 1.3898026315789473) internal successors, (845), 611 states have internal predecessors, (845), 124 states have call successors, (124), 49 states have call predecessors, (124), 49 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:16,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1093 transitions. [2024-11-16 08:11:16,023 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1093 transitions. Word has length 79 [2024-11-16 08:11:16,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:16,023 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1093 transitions. [2024-11-16 08:11:16,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:11:16,024 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1093 transitions. [2024-11-16 08:11:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:11:16,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:16,025 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:16,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:11:16,026 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:16,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash -730633608, now seen corresponding path program 1 times [2024-11-16 08:11:16,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:16,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675532226] [2024-11-16 08:11:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 08:11:16,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:16,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675532226] [2024-11-16 08:11:16,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675532226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:16,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:16,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:16,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521599680] [2024-11-16 08:11:16,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:16,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:16,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:16,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:16,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:16,203 INFO L87 Difference]: Start difference. First operand 782 states and 1093 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:11:16,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:16,300 INFO L93 Difference]: Finished difference Result 1460 states and 2077 transitions. [2024-11-16 08:11:16,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:16,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-16 08:11:16,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:16,306 INFO L225 Difference]: With dead ends: 1460 [2024-11-16 08:11:16,306 INFO L226 Difference]: Without dead ends: 802 [2024-11-16 08:11:16,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:16,309 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 4 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:16,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 777 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:16,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2024-11-16 08:11:16,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2024-11-16 08:11:16,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 624 states have (on average 1.3798076923076923) internal successors, (861), 627 states have internal predecessors, (861), 124 states have call successors, (124), 53 states have call predecessors, (124), 53 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1109 transitions. [2024-11-16 08:11:16,364 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1109 transitions. Word has length 79 [2024-11-16 08:11:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:16,365 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1109 transitions. [2024-11-16 08:11:16,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-16 08:11:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1109 transitions. [2024-11-16 08:11:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 08:11:16,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:16,367 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:16,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:11:16,367 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:16,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1844271418, now seen corresponding path program 1 times [2024-11-16 08:11:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018849514] [2024-11-16 08:11:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:16,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:11:16,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:16,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018849514] [2024-11-16 08:11:16,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018849514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:16,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:16,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:16,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527774958] [2024-11-16 08:11:16,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:16,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:16,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:16,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:16,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:16,564 INFO L87 Difference]: Start difference. First operand 802 states and 1109 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 08:11:16,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:16,632 INFO L93 Difference]: Finished difference Result 1504 states and 2105 transitions. [2024-11-16 08:11:16,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:16,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 87 [2024-11-16 08:11:16,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:16,638 INFO L225 Difference]: With dead ends: 1504 [2024-11-16 08:11:16,638 INFO L226 Difference]: Without dead ends: 826 [2024-11-16 08:11:16,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:16,641 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 5 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:16,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 789 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:16,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-16 08:11:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2024-11-16 08:11:16,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 644 states have (on average 1.3680124223602483) internal successors, (881), 647 states have internal predecessors, (881), 124 states have call successors, (124), 57 states have call predecessors, (124), 57 states have return successors, (124), 121 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-16 08:11:16,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1129 transitions. [2024-11-16 08:11:16,704 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1129 transitions. Word has length 87 [2024-11-16 08:11:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:16,704 INFO L471 AbstractCegarLoop]: Abstraction has 826 states and 1129 transitions. [2024-11-16 08:11:16,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-16 08:11:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1129 transitions. [2024-11-16 08:11:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 08:11:16,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:16,707 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:16,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:11:16,707 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:16,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash -204510436, now seen corresponding path program 1 times [2024-11-16 08:11:16,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:16,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420596422] [2024-11-16 08:11:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:16,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 08:11:17,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:17,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420596422] [2024-11-16 08:11:17,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420596422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:17,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:17,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:17,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989914034] [2024-11-16 08:11:17,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:17,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:17,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:17,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:17,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:17,305 INFO L87 Difference]: Start difference. First operand 826 states and 1129 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:11:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:17,613 INFO L93 Difference]: Finished difference Result 2103 states and 2873 transitions. [2024-11-16 08:11:17,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:11:17,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 90 [2024-11-16 08:11:17,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:17,622 INFO L225 Difference]: With dead ends: 2103 [2024-11-16 08:11:17,622 INFO L226 Difference]: Without dead ends: 1401 [2024-11-16 08:11:17,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:17,625 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 203 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:17,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1528 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:11:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-11-16 08:11:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1110. [2024-11-16 08:11:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 855 states have (on average 1.360233918128655) internal successors, (1163), 860 states have internal predecessors, (1163), 172 states have call successors, (172), 82 states have call predecessors, (172), 82 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2024-11-16 08:11:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1507 transitions. [2024-11-16 08:11:17,703 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1507 transitions. Word has length 90 [2024-11-16 08:11:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:17,703 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1507 transitions. [2024-11-16 08:11:17,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-16 08:11:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1507 transitions. [2024-11-16 08:11:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 08:11:17,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:17,706 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:17,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:11:17,706 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:17,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1840416444, now seen corresponding path program 1 times [2024-11-16 08:11:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:17,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144545365] [2024-11-16 08:11:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:17,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-16 08:11:17,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:17,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144545365] [2024-11-16 08:11:17,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144545365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:17,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:17,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924084649] [2024-11-16 08:11:17,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:17,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:17,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:17,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:17,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:17,884 INFO L87 Difference]: Start difference. First operand 1110 states and 1507 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:11:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:17,965 INFO L93 Difference]: Finished difference Result 2052 states and 2813 transitions. [2024-11-16 08:11:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:17,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 94 [2024-11-16 08:11:17,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:17,972 INFO L225 Difference]: With dead ends: 2052 [2024-11-16 08:11:17,972 INFO L226 Difference]: Without dead ends: 1134 [2024-11-16 08:11:17,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:17,976 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 3 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:17,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 787 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:17,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2024-11-16 08:11:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1134. [2024-11-16 08:11:18,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 873 states have (on average 1.3528064146620848) internal successors, (1181), 878 states have internal predecessors, (1181), 172 states have call successors, (172), 88 states have call predecessors, (172), 88 states have return successors, (172), 167 states have call predecessors, (172), 172 states have call successors, (172) [2024-11-16 08:11:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1525 transitions. [2024-11-16 08:11:18,043 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1525 transitions. Word has length 94 [2024-11-16 08:11:18,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:18,043 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1525 transitions. [2024-11-16 08:11:18,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-16 08:11:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1525 transitions. [2024-11-16 08:11:18,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:11:18,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:18,045 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:18,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:11:18,045 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:18,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:18,046 INFO L85 PathProgramCache]: Analyzing trace with hash -521808302, now seen corresponding path program 1 times [2024-11-16 08:11:18,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:18,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822109602] [2024-11-16 08:11:18,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:18,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 08:11:18,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:18,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822109602] [2024-11-16 08:11:18,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822109602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:18,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:18,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:11:18,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795285924] [2024-11-16 08:11:18,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:18,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:11:18,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:18,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:11:18,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:11:18,368 INFO L87 Difference]: Start difference. First operand 1134 states and 1525 transitions. Second operand has 8 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:11:18,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:18,516 INFO L93 Difference]: Finished difference Result 1581 states and 2232 transitions. [2024-11-16 08:11:18,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:11:18,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 93 [2024-11-16 08:11:18,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:18,525 INFO L225 Difference]: With dead ends: 1581 [2024-11-16 08:11:18,525 INFO L226 Difference]: Without dead ends: 1578 [2024-11-16 08:11:18,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:11:18,527 INFO L432 NwaCegarLoop]: 461 mSDtfsCounter, 143 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:18,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 3018 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-11-16 08:11:18,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1142. [2024-11-16 08:11:18,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 877 states have (on average 1.3511972633979477) internal successors, (1185), 884 states have internal predecessors, (1185), 174 states have call successors, (174), 90 states have call predecessors, (174), 90 states have return successors, (174), 167 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-16 08:11:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1533 transitions. [2024-11-16 08:11:18,622 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1533 transitions. Word has length 93 [2024-11-16 08:11:18,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:18,623 INFO L471 AbstractCegarLoop]: Abstraction has 1142 states and 1533 transitions. [2024-11-16 08:11:18,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:11:18,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1533 transitions. [2024-11-16 08:11:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:11:18,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:18,624 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:18,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:11:18,625 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:18,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:18,625 INFO L85 PathProgramCache]: Analyzing trace with hash 430710125, now seen corresponding path program 1 times [2024-11-16 08:11:18,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:18,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144997222] [2024-11-16 08:11:18,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:18,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:11:18,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:18,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144997222] [2024-11-16 08:11:18,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144997222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:18,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:18,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:18,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971843961] [2024-11-16 08:11:18,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:18,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:18,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:18,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:18,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:18,777 INFO L87 Difference]: Start difference. First operand 1142 states and 1533 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:11:18,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:18,962 INFO L93 Difference]: Finished difference Result 2072 states and 2788 transitions. [2024-11-16 08:11:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:11:18,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2024-11-16 08:11:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:18,970 INFO L225 Difference]: With dead ends: 2072 [2024-11-16 08:11:18,970 INFO L226 Difference]: Without dead ends: 1204 [2024-11-16 08:11:18,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:18,973 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 273 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:18,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1533 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-11-16 08:11:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1157. [2024-11-16 08:11:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 903 states have (on average 1.3377630121816169) internal successors, (1208), 915 states have internal predecessors, (1208), 162 states have call successors, (162), 91 states have call predecessors, (162), 91 states have return successors, (162), 150 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-16 08:11:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1532 transitions. [2024-11-16 08:11:19,042 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1532 transitions. Word has length 96 [2024-11-16 08:11:19,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:19,042 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1532 transitions. [2024-11-16 08:11:19,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-16 08:11:19,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1532 transitions. [2024-11-16 08:11:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 08:11:19,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:19,044 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:19,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:11:19,044 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:19,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:19,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1005488077, now seen corresponding path program 1 times [2024-11-16 08:11:19,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:19,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417799106] [2024-11-16 08:11:19,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:19,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:11:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 08:11:19,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:19,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417799106] [2024-11-16 08:11:19,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417799106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:19,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:19,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:19,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959744901] [2024-11-16 08:11:19,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:19,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:19,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:19,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:19,633 INFO L87 Difference]: Start difference. First operand 1157 states and 1532 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:19,859 INFO L93 Difference]: Finished difference Result 2059 states and 2739 transitions. [2024-11-16 08:11:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:11:19,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2024-11-16 08:11:19,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:19,866 INFO L225 Difference]: With dead ends: 2059 [2024-11-16 08:11:19,866 INFO L226 Difference]: Without dead ends: 1156 [2024-11-16 08:11:19,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:19,869 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 159 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:19,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1661 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:19,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2024-11-16 08:11:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1044. [2024-11-16 08:11:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 817 states have (on average 1.3402692778457772) internal successors, (1095), 827 states have internal predecessors, (1095), 145 states have call successors, (145), 81 states have call predecessors, (145), 81 states have return successors, (145), 135 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-16 08:11:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1385 transitions. [2024-11-16 08:11:19,931 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1385 transitions. Word has length 98 [2024-11-16 08:11:19,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:19,931 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1385 transitions. [2024-11-16 08:11:19,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:19,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1385 transitions. [2024-11-16 08:11:19,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:11:19,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:19,933 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:19,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:11:19,933 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:19,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:19,933 INFO L85 PathProgramCache]: Analyzing trace with hash 827240365, now seen corresponding path program 1 times [2024-11-16 08:11:19,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:19,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589264321] [2024-11-16 08:11:19,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:19,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 08:11:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 08:11:20,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:20,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589264321] [2024-11-16 08:11:20,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589264321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:20,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:20,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:20,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810819718] [2024-11-16 08:11:20,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:20,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:20,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:20,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:20,432 INFO L87 Difference]: Start difference. First operand 1044 states and 1385 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:20,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:20,833 INFO L93 Difference]: Finished difference Result 1988 states and 2624 transitions. [2024-11-16 08:11:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:11:20,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 99 [2024-11-16 08:11:20,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:20,841 INFO L225 Difference]: With dead ends: 1988 [2024-11-16 08:11:20,841 INFO L226 Difference]: Without dead ends: 1118 [2024-11-16 08:11:20,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:20,843 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 422 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:20,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1320 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:11:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-11-16 08:11:20,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1060. [2024-11-16 08:11:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 825 states have (on average 1.3187878787878788) internal successors, (1088), 836 states have internal predecessors, (1088), 148 states have call successors, (148), 86 states have call predecessors, (148), 86 states have return successors, (148), 137 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-16 08:11:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1384 transitions. [2024-11-16 08:11:20,930 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1384 transitions. Word has length 99 [2024-11-16 08:11:20,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:20,931 INFO L471 AbstractCegarLoop]: Abstraction has 1060 states and 1384 transitions. [2024-11-16 08:11:20,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-16 08:11:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1384 transitions. [2024-11-16 08:11:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:11:20,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:20,932 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:20,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:11:20,933 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:20,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:20,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2027428579, now seen corresponding path program 1 times [2024-11-16 08:11:20,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:20,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061646475] [2024-11-16 08:11:20,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:20,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:11:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:11:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 08:11:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 08:11:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:11:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:21,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:21,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061646475] [2024-11-16 08:11:21,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061646475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:21,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:21,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:21,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098105642] [2024-11-16 08:11:21,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:21,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:21,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:21,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:21,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:21,060 INFO L87 Difference]: Start difference. First operand 1060 states and 1384 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:21,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:21,242 INFO L93 Difference]: Finished difference Result 2777 states and 3654 transitions. [2024-11-16 08:11:21,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:21,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 100 [2024-11-16 08:11:21,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:21,253 INFO L225 Difference]: With dead ends: 2777 [2024-11-16 08:11:21,253 INFO L226 Difference]: Without dead ends: 1942 [2024-11-16 08:11:21,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:21,256 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 208 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:21,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1187 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:21,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2024-11-16 08:11:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1818. [2024-11-16 08:11:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1393 states have (on average 1.3151471643933956) internal successors, (1832), 1412 states have internal predecessors, (1832), 272 states have call successors, (272), 152 states have call predecessors, (272), 152 states have return successors, (272), 253 states have call predecessors, (272), 272 states have call successors, (272) [2024-11-16 08:11:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2376 transitions. [2024-11-16 08:11:21,389 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2376 transitions. Word has length 100 [2024-11-16 08:11:21,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:21,390 INFO L471 AbstractCegarLoop]: Abstraction has 1818 states and 2376 transitions. [2024-11-16 08:11:21,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:21,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2376 transitions. [2024-11-16 08:11:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:11:21,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:21,410 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:21,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:11:21,410 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:21,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:21,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2087637592, now seen corresponding path program 1 times [2024-11-16 08:11:21,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:21,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439634819] [2024-11-16 08:11:21,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:21,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:11:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:11:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 08:11:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 08:11:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 08:11:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-16 08:11:21,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:21,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439634819] [2024-11-16 08:11:21,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439634819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:21,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:21,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:21,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153567758] [2024-11-16 08:11:21,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:21,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:21,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:21,908 INFO L87 Difference]: Start difference. First operand 1818 states and 2376 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:22,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:22,450 INFO L93 Difference]: Finished difference Result 3526 states and 4610 transitions. [2024-11-16 08:11:22,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:11:22,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 102 [2024-11-16 08:11:22,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:22,462 INFO L225 Difference]: With dead ends: 3526 [2024-11-16 08:11:22,462 INFO L226 Difference]: Without dead ends: 2019 [2024-11-16 08:11:22,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:22,468 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 534 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:22,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1502 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:11:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2024-11-16 08:11:22,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 1842. [2024-11-16 08:11:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1404 states have (on average 1.3098290598290598) internal successors, (1839), 1424 states have internal predecessors, (1839), 280 states have call successors, (280), 157 states have call predecessors, (280), 157 states have return successors, (280), 260 states have call predecessors, (280), 280 states have call successors, (280) [2024-11-16 08:11:22,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2399 transitions. [2024-11-16 08:11:22,637 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2399 transitions. Word has length 102 [2024-11-16 08:11:22,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:22,637 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2399 transitions. [2024-11-16 08:11:22,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2399 transitions. [2024-11-16 08:11:22,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:11:22,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:22,639 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:22,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:11:22,639 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:22,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1731263321, now seen corresponding path program 1 times [2024-11-16 08:11:22,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:22,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632250193] [2024-11-16 08:11:22,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:22,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:11:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:11:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 08:11:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 08:11:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:11:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 08:11:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 08:11:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:22,747 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:22,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:22,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632250193] [2024-11-16 08:11:22,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632250193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:22,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:22,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:22,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484347708] [2024-11-16 08:11:22,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:22,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:22,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:22,750 INFO L87 Difference]: Start difference. First operand 1842 states and 2399 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:23,042 INFO L93 Difference]: Finished difference Result 4666 states and 6115 transitions. [2024-11-16 08:11:23,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:23,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 104 [2024-11-16 08:11:23,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:23,058 INFO L225 Difference]: With dead ends: 4666 [2024-11-16 08:11:23,059 INFO L226 Difference]: Without dead ends: 3175 [2024-11-16 08:11:23,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:23,064 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 214 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:23,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1225 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:23,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2024-11-16 08:11:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 2868. [2024-11-16 08:11:23,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2868 states, 2155 states have (on average 1.3044083526682135) internal successors, (2811), 2186 states have internal predecessors, (2811), 460 states have call successors, (460), 252 states have call predecessors, (460), 252 states have return successors, (460), 429 states have call predecessors, (460), 460 states have call successors, (460) [2024-11-16 08:11:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2868 states to 2868 states and 3731 transitions. [2024-11-16 08:11:23,375 INFO L78 Accepts]: Start accepts. Automaton has 2868 states and 3731 transitions. Word has length 104 [2024-11-16 08:11:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:23,375 INFO L471 AbstractCegarLoop]: Abstraction has 2868 states and 3731 transitions. [2024-11-16 08:11:23,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:23,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2868 states and 3731 transitions. [2024-11-16 08:11:23,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:11:23,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:23,377 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:23,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:11:23,378 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:23,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:23,378 INFO L85 PathProgramCache]: Analyzing trace with hash 696907969, now seen corresponding path program 1 times [2024-11-16 08:11:23,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:23,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113155380] [2024-11-16 08:11:23,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:23,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 08:11:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:11:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:11:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:11:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 08:11:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 08:11:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:23,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:23,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:23,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113155380] [2024-11-16 08:11:23,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113155380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:23,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:23,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:23,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920430918] [2024-11-16 08:11:23,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:23,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:23,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:23,483 INFO L87 Difference]: Start difference. First operand 2868 states and 3731 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:23,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:23,967 INFO L93 Difference]: Finished difference Result 6687 states and 8745 transitions. [2024-11-16 08:11:23,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:23,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 104 [2024-11-16 08:11:23,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:23,996 INFO L225 Difference]: With dead ends: 6687 [2024-11-16 08:11:23,996 INFO L226 Difference]: Without dead ends: 4292 [2024-11-16 08:11:24,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:24,006 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 207 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:24,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 1221 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:24,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2024-11-16 08:11:24,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4099. [2024-11-16 08:11:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4099 states, 3062 states have (on average 1.3017635532331808) internal successors, (3986), 3106 states have internal predecessors, (3986), 672 states have call successors, (672), 364 states have call predecessors, (672), 364 states have return successors, (672), 628 states have call predecessors, (672), 672 states have call successors, (672) [2024-11-16 08:11:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5330 transitions. [2024-11-16 08:11:24,438 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5330 transitions. Word has length 104 [2024-11-16 08:11:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:24,438 INFO L471 AbstractCegarLoop]: Abstraction has 4099 states and 5330 transitions. [2024-11-16 08:11:24,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5330 transitions. [2024-11-16 08:11:24,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 08:11:24,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:24,441 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:24,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:11:24,441 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:24,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:24,442 INFO L85 PathProgramCache]: Analyzing trace with hash -419204736, now seen corresponding path program 1 times [2024-11-16 08:11:24,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:24,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087222396] [2024-11-16 08:11:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 08:11:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 08:11:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 08:11:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 08:11:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 08:11:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 08:11:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:24,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:24,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087222396] [2024-11-16 08:11:24,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087222396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:24,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:24,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:24,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880936283] [2024-11-16 08:11:24,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:24,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:24,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:24,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:24,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:24,627 INFO L87 Difference]: Start difference. First operand 4099 states and 5330 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:24,943 INFO L93 Difference]: Finished difference Result 7816 states and 10192 transitions. [2024-11-16 08:11:24,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:24,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 106 [2024-11-16 08:11:24,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:24,965 INFO L225 Difference]: With dead ends: 7816 [2024-11-16 08:11:24,966 INFO L226 Difference]: Without dead ends: 3798 [2024-11-16 08:11:24,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:24,979 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 88 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:24,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 768 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:24,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3798 states. [2024-11-16 08:11:25,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3798 to 3735. [2024-11-16 08:11:25,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 2781 states have (on average 1.3121179431859042) internal successors, (3649), 2815 states have internal predecessors, (3649), 620 states have call successors, (620), 333 states have call predecessors, (620), 333 states have return successors, (620), 586 states have call predecessors, (620), 620 states have call successors, (620) [2024-11-16 08:11:25,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 4889 transitions. [2024-11-16 08:11:25,367 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 4889 transitions. Word has length 106 [2024-11-16 08:11:25,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:25,367 INFO L471 AbstractCegarLoop]: Abstraction has 3735 states and 4889 transitions. [2024-11-16 08:11:25,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:25,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 4889 transitions. [2024-11-16 08:11:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 08:11:25,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:25,369 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:25,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:11:25,370 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:25,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash 423267698, now seen corresponding path program 1 times [2024-11-16 08:11:25,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:25,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770567674] [2024-11-16 08:11:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:25,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 08:11:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 08:11:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 08:11:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 08:11:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 08:11:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 08:11:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 08:11:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 08:11:25,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:25,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770567674] [2024-11-16 08:11:25,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770567674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:25,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:25,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:11:25,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755450048] [2024-11-16 08:11:25,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:25,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:11:25,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:25,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:11:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:11:25,506 INFO L87 Difference]: Start difference. First operand 3735 states and 4889 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:25,862 INFO L93 Difference]: Finished difference Result 7265 states and 9533 transitions. [2024-11-16 08:11:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:11:25,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 108 [2024-11-16 08:11:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:25,880 INFO L225 Difference]: With dead ends: 7265 [2024-11-16 08:11:25,880 INFO L226 Difference]: Without dead ends: 3652 [2024-11-16 08:11:25,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:11:25,888 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 67 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:25,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 778 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:25,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2024-11-16 08:11:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 2810. [2024-11-16 08:11:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2090 states have (on average 1.3076555023923444) internal successors, (2733), 2109 states have internal predecessors, (2733), 469 states have call successors, (469), 250 states have call predecessors, (469), 250 states have return successors, (469), 450 states have call predecessors, (469), 469 states have call successors, (469) [2024-11-16 08:11:26,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3671 transitions. [2024-11-16 08:11:26,155 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3671 transitions. Word has length 108 [2024-11-16 08:11:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:26,155 INFO L471 AbstractCegarLoop]: Abstraction has 2810 states and 3671 transitions. [2024-11-16 08:11:26,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-16 08:11:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3671 transitions. [2024-11-16 08:11:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 08:11:26,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:26,160 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 08:11:26,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:11:26,161 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:26,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:26,161 INFO L85 PathProgramCache]: Analyzing trace with hash -83178010, now seen corresponding path program 1 times [2024-11-16 08:11:26,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:26,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747242723] [2024-11-16 08:11:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:26,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 08:11:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 08:11:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 08:11:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 08:11:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 08:11:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 08:11:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:11:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 08:11:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 08:11:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 08:11:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 08:11:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-16 08:11:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 08:11:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,119 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:27,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:27,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747242723] [2024-11-16 08:11:27,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747242723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:27,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970327700] [2024-11-16 08:11:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:27,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:27,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:27,123 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 08:11:27,124 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 08:11:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:27,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 08:11:27,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-16 08:11:27,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 08:11:27,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970327700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:27,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 08:11:27,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-16 08:11:27,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408886055] [2024-11-16 08:11:27,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:27,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:11:27,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:27,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:11:27,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:27,471 INFO L87 Difference]: Start difference. First operand 2810 states and 3671 transitions. Second operand has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 08:11:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:27,767 INFO L93 Difference]: Finished difference Result 5285 states and 6947 transitions. [2024-11-16 08:11:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:11:27,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 158 [2024-11-16 08:11:27,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:27,784 INFO L225 Difference]: With dead ends: 5285 [2024-11-16 08:11:27,785 INFO L226 Difference]: Without dead ends: 2637 [2024-11-16 08:11:27,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:27,792 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 0 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:27,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1052 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:11:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2024-11-16 08:11:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2620. [2024-11-16 08:11:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2620 states, 1945 states have (on average 1.304370179948586) internal successors, (2537), 1962 states have internal predecessors, (2537), 440 states have call successors, (440), 234 states have call predecessors, (440), 234 states have return successors, (440), 423 states have call predecessors, (440), 440 states have call successors, (440) [2024-11-16 08:11:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3417 transitions. [2024-11-16 08:11:28,098 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3417 transitions. Word has length 158 [2024-11-16 08:11:28,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:28,099 INFO L471 AbstractCegarLoop]: Abstraction has 2620 states and 3417 transitions. [2024-11-16 08:11:28,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.25) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-16 08:11:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3417 transitions. [2024-11-16 08:11:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 08:11:28,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:28,104 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 08:11:28,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 08:11:28,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-16 08:11:28,309 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:28,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash -946581008, now seen corresponding path program 1 times [2024-11-16 08:11:28,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:28,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269508288] [2024-11-16 08:11:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:28,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 08:11:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 08:11:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 08:11:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 08:11:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 08:11:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:28,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 08:11:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 08:11:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 08:11:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 08:11:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-16 08:11:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:11:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-16 08:11:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:29,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:29,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269508288] [2024-11-16 08:11:29,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269508288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:29,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375529759] [2024-11-16 08:11:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:29,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:29,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:29,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:11:29,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:11:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:29,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 08:11:29,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 44 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:11:29,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:29,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375529759] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:29,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:29,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 8] total 23 [2024-11-16 08:11:29,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628803902] [2024-11-16 08:11:29,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:29,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 08:11:29,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:29,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 08:11:29,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-11-16 08:11:29,977 INFO L87 Difference]: Start difference. First operand 2620 states and 3417 transitions. Second operand has 23 states, 23 states have (on average 10.782608695652174) internal successors, (248), 20 states have internal predecessors, (248), 8 states have call successors, (40), 4 states have call predecessors, (40), 8 states have return successors, (39), 11 states have call predecessors, (39), 8 states have call successors, (39) [2024-11-16 08:11:31,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:31,818 INFO L93 Difference]: Finished difference Result 7406 states and 9698 transitions. [2024-11-16 08:11:31,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-16 08:11:31,819 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.782608695652174) internal successors, (248), 20 states have internal predecessors, (248), 8 states have call successors, (40), 4 states have call predecessors, (40), 8 states have return successors, (39), 11 states have call predecessors, (39), 8 states have call successors, (39) Word has length 160 [2024-11-16 08:11:31,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:31,843 INFO L225 Difference]: With dead ends: 7406 [2024-11-16 08:11:31,843 INFO L226 Difference]: Without dead ends: 5020 [2024-11-16 08:11:31,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=360, Invalid=1532, Unknown=0, NotChecked=0, Total=1892 [2024-11-16 08:11:31,853 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1084 mSDsluCounter, 4171 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 4606 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:31,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 4606 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:11:31,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5020 states. [2024-11-16 08:11:32,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5020 to 4488. [2024-11-16 08:11:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4488 states, 3332 states have (on average 1.3076230492196879) internal successors, (4357), 3360 states have internal predecessors, (4357), 751 states have call successors, (751), 404 states have call predecessors, (751), 404 states have return successors, (751), 723 states have call predecessors, (751), 751 states have call successors, (751) [2024-11-16 08:11:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4488 states to 4488 states and 5859 transitions. [2024-11-16 08:11:32,348 INFO L78 Accepts]: Start accepts. Automaton has 4488 states and 5859 transitions. Word has length 160 [2024-11-16 08:11:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:32,349 INFO L471 AbstractCegarLoop]: Abstraction has 4488 states and 5859 transitions. [2024-11-16 08:11:32,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.782608695652174) internal successors, (248), 20 states have internal predecessors, (248), 8 states have call successors, (40), 4 states have call predecessors, (40), 8 states have return successors, (39), 11 states have call predecessors, (39), 8 states have call successors, (39) [2024-11-16 08:11:32,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4488 states and 5859 transitions. [2024-11-16 08:11:32,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 08:11:32,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:32,356 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:32,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 08:11:32,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-16 08:11:32,561 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:32,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:32,562 INFO L85 PathProgramCache]: Analyzing trace with hash -994903744, now seen corresponding path program 1 times [2024-11-16 08:11:32,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:32,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502630055] [2024-11-16 08:11:32,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:32,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:11:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 08:11:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 08:11:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 08:11:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 08:11:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:11:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:11:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 08:11:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 08:11:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 08:11:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-16 08:11:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-16 08:11:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:32,915 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:32,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502630055] [2024-11-16 08:11:32,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502630055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:32,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569807253] [2024-11-16 08:11:32,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:32,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:32,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:32,918 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:11:32,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:11:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:33,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-16 08:11:33,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 61 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:11:33,724 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:34,446 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-16 08:11:34,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569807253] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:34,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:34,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 22 [2024-11-16 08:11:34,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101958812] [2024-11-16 08:11:34,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:34,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 08:11:34,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:34,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 08:11:34,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:11:34,451 INFO L87 Difference]: Start difference. First operand 4488 states and 5859 transitions. Second operand has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 22 states have internal predecessors, (259), 9 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) [2024-11-16 08:11:37,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:37,631 INFO L93 Difference]: Finished difference Result 10663 states and 13907 transitions. [2024-11-16 08:11:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-16 08:11:37,631 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 22 states have internal predecessors, (259), 9 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) Word has length 161 [2024-11-16 08:11:37,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:37,654 INFO L225 Difference]: With dead ends: 10663 [2024-11-16 08:11:37,655 INFO L226 Difference]: Without dead ends: 6424 [2024-11-16 08:11:37,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=881, Invalid=2541, Unknown=0, NotChecked=0, Total=3422 [2024-11-16 08:11:37,664 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 1764 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:37,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 3229 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 08:11:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6424 states. [2024-11-16 08:11:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6424 to 6085. [2024-11-16 08:11:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 4511 states have (on average 1.2999334958989137) internal successors, (5864), 4550 states have internal predecessors, (5864), 1014 states have call successors, (1014), 559 states have call predecessors, (1014), 559 states have return successors, (1014), 975 states have call predecessors, (1014), 1014 states have call successors, (1014) [2024-11-16 08:11:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 7892 transitions. [2024-11-16 08:11:38,424 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 7892 transitions. Word has length 161 [2024-11-16 08:11:38,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:38,424 INFO L471 AbstractCegarLoop]: Abstraction has 6085 states and 7892 transitions. [2024-11-16 08:11:38,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 22 states have internal predecessors, (259), 9 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) [2024-11-16 08:11:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 7892 transitions. [2024-11-16 08:11:38,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 08:11:38,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:38,435 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 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 08:11:38,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 08:11:38,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:38,640 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:38,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:38,640 INFO L85 PathProgramCache]: Analyzing trace with hash 708065103, now seen corresponding path program 1 times [2024-11-16 08:11:38,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:38,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35221536] [2024-11-16 08:11:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:38,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:11:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:11:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 08:11:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 08:11:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 08:11:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 08:11:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 08:11:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 08:11:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 08:11:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:11:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:11:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 08:11:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:11:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 08:11:38,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:38,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35221536] [2024-11-16 08:11:38,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35221536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:11:38,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:11:38,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 08:11:38,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360873746] [2024-11-16 08:11:38,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:11:38,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:11:38,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:38,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:11:38,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:11:38,857 INFO L87 Difference]: Start difference. First operand 6085 states and 7892 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 08:11:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:40,029 INFO L93 Difference]: Finished difference Result 17833 states and 23194 transitions. [2024-11-16 08:11:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:11:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 163 [2024-11-16 08:11:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:40,083 INFO L225 Difference]: With dead ends: 17833 [2024-11-16 08:11:40,084 INFO L226 Difference]: Without dead ends: 12057 [2024-11-16 08:11:40,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:11:40,100 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 231 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:40,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 2656 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:11:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12057 states. [2024-11-16 08:11:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12057 to 8569. [2024-11-16 08:11:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8569 states, 6299 states have (on average 1.2994126051754247) internal successors, (8185), 6356 states have internal predecessors, (8185), 1478 states have call successors, (1478), 791 states have call predecessors, (1478), 791 states have return successors, (1478), 1421 states have call predecessors, (1478), 1478 states have call successors, (1478) [2024-11-16 08:11:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8569 states to 8569 states and 11141 transitions. [2024-11-16 08:11:41,270 INFO L78 Accepts]: Start accepts. Automaton has 8569 states and 11141 transitions. Word has length 163 [2024-11-16 08:11:41,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:41,271 INFO L471 AbstractCegarLoop]: Abstraction has 8569 states and 11141 transitions. [2024-11-16 08:11:41,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-16 08:11:41,272 INFO L276 IsEmpty]: Start isEmpty. Operand 8569 states and 11141 transitions. [2024-11-16 08:11:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 08:11:41,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:41,284 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:41,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:11:41,285 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:41,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:41,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1303331213, now seen corresponding path program 1 times [2024-11-16 08:11:41,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:41,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182872286] [2024-11-16 08:11:41,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:41,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:11:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:11:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 08:11:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 08:11:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:11:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 08:11:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 08:11:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 08:11:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 08:11:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 08:11:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:41,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:11:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:42,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 08:11:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:42,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:11:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-16 08:11:42,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:42,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182872286] [2024-11-16 08:11:42,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182872286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:42,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87604986] [2024-11-16 08:11:42,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:42,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:42,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:42,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:11:42,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 08:11:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:42,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-16 08:11:42,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 66 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-16 08:11:42,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-16 08:11:42,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87604986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:42,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:42,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 9] total 23 [2024-11-16 08:11:42,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422260367] [2024-11-16 08:11:42,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:42,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 08:11:42,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:42,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 08:11:42,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2024-11-16 08:11:42,709 INFO L87 Difference]: Start difference. First operand 8569 states and 11141 transitions. Second operand has 23 states, 23 states have (on average 7.521739130434782) internal successors, (173), 18 states have internal predecessors, (173), 4 states have call successors, (24), 4 states have call predecessors, (24), 9 states have return successors, (27), 8 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-16 08:11:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:45,180 INFO L93 Difference]: Finished difference Result 22839 states and 29579 transitions. [2024-11-16 08:11:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:11:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.521739130434782) internal successors, (173), 18 states have internal predecessors, (173), 4 states have call successors, (24), 4 states have call predecessors, (24), 9 states have return successors, (27), 8 states have call predecessors, (27), 4 states have call successors, (27) Word has length 163 [2024-11-16 08:11:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:45,250 INFO L225 Difference]: With dead ends: 22839 [2024-11-16 08:11:45,250 INFO L226 Difference]: Without dead ends: 14380 [2024-11-16 08:11:45,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1064, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 08:11:45,275 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 511 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:45,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 3099 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:11:45,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14380 states. [2024-11-16 08:11:46,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14380 to 9639. [2024-11-16 08:11:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9639 states, 7070 states have (on average 1.2919377652050918) internal successors, (9134), 7138 states have internal predecessors, (9134), 1663 states have call successors, (1663), 905 states have call predecessors, (1663), 905 states have return successors, (1663), 1595 states have call predecessors, (1663), 1663 states have call successors, (1663) [2024-11-16 08:11:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9639 states to 9639 states and 12460 transitions. [2024-11-16 08:11:46,516 INFO L78 Accepts]: Start accepts. Automaton has 9639 states and 12460 transitions. Word has length 163 [2024-11-16 08:11:46,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:46,517 INFO L471 AbstractCegarLoop]: Abstraction has 9639 states and 12460 transitions. [2024-11-16 08:11:46,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.521739130434782) internal successors, (173), 18 states have internal predecessors, (173), 4 states have call successors, (24), 4 states have call predecessors, (24), 9 states have return successors, (27), 8 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-16 08:11:46,517 INFO L276 IsEmpty]: Start isEmpty. Operand 9639 states and 12460 transitions. [2024-11-16 08:11:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-16 08:11:46,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:46,528 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:46,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 08:11:46,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:46,730 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:46,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:46,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1451702213, now seen corresponding path program 1 times [2024-11-16 08:11:46,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:46,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373222793] [2024-11-16 08:11:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:46,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:11:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:11:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 08:11:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 08:11:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:11:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 08:11:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:11:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 08:11:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 08:11:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-16 08:11:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 08:11:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-16 08:11:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 08:11:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-16 08:11:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-16 08:11:47,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:47,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373222793] [2024-11-16 08:11:47,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373222793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:47,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767877626] [2024-11-16 08:11:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:47,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:47,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:47,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:11:47,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 08:11:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:48,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 08:11:48,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-16 08:11:48,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-16 08:11:48,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767877626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:48,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:48,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 16 [2024-11-16 08:11:48,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482411059] [2024-11-16 08:11:48,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:48,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 08:11:48,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:48,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 08:11:48,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:11:48,469 INFO L87 Difference]: Start difference. First operand 9639 states and 12460 transitions. Second operand has 16 states, 16 states have (on average 13.125) internal successors, (210), 15 states have internal predecessors, (210), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2024-11-16 08:11:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:51,147 INFO L93 Difference]: Finished difference Result 20110 states and 25982 transitions. [2024-11-16 08:11:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-16 08:11:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.125) internal successors, (210), 15 states have internal predecessors, (210), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 171 [2024-11-16 08:11:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:51,192 INFO L225 Difference]: With dead ends: 20110 [2024-11-16 08:11:51,192 INFO L226 Difference]: Without dead ends: 10689 [2024-11-16 08:11:51,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=283, Invalid=1787, Unknown=0, NotChecked=0, Total=2070 [2024-11-16 08:11:51,210 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 896 mSDsluCounter, 4541 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:51,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 5034 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 08:11:51,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2024-11-16 08:11:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 10204. [2024-11-16 08:11:52,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10204 states, 7489 states have (on average 1.2910936039524636) internal successors, (9669), 7562 states have internal predecessors, (9669), 1756 states have call successors, (1756), 958 states have call predecessors, (1756), 958 states have return successors, (1756), 1683 states have call predecessors, (1756), 1756 states have call successors, (1756) [2024-11-16 08:11:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10204 states to 10204 states and 13181 transitions. [2024-11-16 08:11:52,607 INFO L78 Accepts]: Start accepts. Automaton has 10204 states and 13181 transitions. Word has length 171 [2024-11-16 08:11:52,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:52,608 INFO L471 AbstractCegarLoop]: Abstraction has 10204 states and 13181 transitions. [2024-11-16 08:11:52,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.125) internal successors, (210), 15 states have internal predecessors, (210), 6 states have call successors, (37), 4 states have call predecessors, (37), 6 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2024-11-16 08:11:52,608 INFO L276 IsEmpty]: Start isEmpty. Operand 10204 states and 13181 transitions. [2024-11-16 08:11:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 08:11:52,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:52,621 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:52,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 08:11:52,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:52,826 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:11:52,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:11:52,827 INFO L85 PathProgramCache]: Analyzing trace with hash 262418148, now seen corresponding path program 1 times [2024-11-16 08:11:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:11:52,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299080879] [2024-11-16 08:11:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:52,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:11:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:11:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:11:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:11:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 08:11:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 08:11:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:11:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 08:11:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:11:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:11:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 08:11:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 08:11:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-16 08:11:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-16 08:11:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 08:11:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 08:11:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 08:11:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,470 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:11:53,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:11:53,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299080879] [2024-11-16 08:11:53,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299080879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:11:53,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378788475] [2024-11-16 08:11:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:11:53,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:11:53,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:11:53,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:11:53,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 08:11:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:11:53,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 08:11:53,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:11:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 76 proven. 11 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 08:11:54,171 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:11:54,516 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:11:54,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378788475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:11:54,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:11:54,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 18 [2024-11-16 08:11:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755187950] [2024-11-16 08:11:54,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:11:54,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 08:11:54,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:11:54,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 08:11:54,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-16 08:11:54,519 INFO L87 Difference]: Start difference. First operand 10204 states and 13181 transitions. Second operand has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 7 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2024-11-16 08:11:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:11:57,631 INFO L93 Difference]: Finished difference Result 25092 states and 32529 transitions. [2024-11-16 08:11:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 08:11:57,632 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 7 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) Word has length 180 [2024-11-16 08:11:57,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:11:57,716 INFO L225 Difference]: With dead ends: 25092 [2024-11-16 08:11:57,716 INFO L226 Difference]: Without dead ends: 15211 [2024-11-16 08:11:57,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2024-11-16 08:11:57,747 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1092 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:11:57,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 2385 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:11:57,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15211 states. [2024-11-16 08:11:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15211 to 14296. [2024-11-16 08:11:59,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14296 states, 10470 states have (on average 1.2946513849092645) internal successors, (13555), 10577 states have internal predecessors, (13555), 2477 states have call successors, (2477), 1348 states have call predecessors, (2477), 1348 states have return successors, (2477), 2370 states have call predecessors, (2477), 2477 states have call successors, (2477) [2024-11-16 08:11:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14296 states to 14296 states and 18509 transitions. [2024-11-16 08:11:59,882 INFO L78 Accepts]: Start accepts. Automaton has 14296 states and 18509 transitions. Word has length 180 [2024-11-16 08:11:59,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:11:59,883 INFO L471 AbstractCegarLoop]: Abstraction has 14296 states and 18509 transitions. [2024-11-16 08:11:59,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.88888888888889) internal successors, (232), 18 states have internal predecessors, (232), 7 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (33), 7 states have call predecessors, (33), 7 states have call successors, (33) [2024-11-16 08:11:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 14296 states and 18509 transitions. [2024-11-16 08:11:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 08:11:59,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:11:59,897 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 08:11:59,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 08:12:00,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:12:00,101 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:12:00,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:12:00,101 INFO L85 PathProgramCache]: Analyzing trace with hash 499221404, now seen corresponding path program 1 times [2024-11-16 08:12:00,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:12:00,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499791264] [2024-11-16 08:12:00,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:12:00,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:12:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:12:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 08:12:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 08:12:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 08:12:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 08:12:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 08:12:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 08:12:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 08:12:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 08:12:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 08:12:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-16 08:12:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:12:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:12:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 08:12:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 08:12:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:12:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,632 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:12:00,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:12:00,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499791264] [2024-11-16 08:12:00,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499791264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:12:00,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185727306] [2024-11-16 08:12:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:12:00,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:12:00,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:12:00,635 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:12:00,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 08:12:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:00,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-16 08:12:00,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:12:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 65 proven. 25 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 08:12:01,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:12:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:12:01,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185727306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:12:01,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:12:01,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2024-11-16 08:12:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704715995] [2024-11-16 08:12:01,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:12:01,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 08:12:01,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:12:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 08:12:01,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:12:01,679 INFO L87 Difference]: Start difference. First operand 14296 states and 18509 transitions. Second operand has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 21 states have internal predecessors, (263), 8 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (34), 9 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-16 08:12:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:12:05,958 INFO L93 Difference]: Finished difference Result 34296 states and 44504 transitions. [2024-11-16 08:12:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-16 08:12:05,958 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 21 states have internal predecessors, (263), 8 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (34), 9 states have call predecessors, (34), 8 states have call successors, (34) Word has length 181 [2024-11-16 08:12:05,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:12:06,047 INFO L225 Difference]: With dead ends: 34296 [2024-11-16 08:12:06,048 INFO L226 Difference]: Without dead ends: 21249 [2024-11-16 08:12:06,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=511, Invalid=2039, Unknown=0, NotChecked=0, Total=2550 [2024-11-16 08:12:06,080 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1151 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 3408 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:12:06,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 3408 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:12:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21249 states. [2024-11-16 08:12:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21249 to 20994. [2024-11-16 08:12:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20994 states, 15445 states have (on average 1.294787957267724) internal successors, (19998), 15597 states have internal predecessors, (19998), 3578 states have call successors, (3578), 1970 states have call predecessors, (3578), 1970 states have return successors, (3578), 3426 states have call predecessors, (3578), 3578 states have call successors, (3578) [2024-11-16 08:12:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20994 states to 20994 states and 27154 transitions. [2024-11-16 08:12:09,197 INFO L78 Accepts]: Start accepts. Automaton has 20994 states and 27154 transitions. Word has length 181 [2024-11-16 08:12:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:12:09,197 INFO L471 AbstractCegarLoop]: Abstraction has 20994 states and 27154 transitions. [2024-11-16 08:12:09,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 21 states have internal predecessors, (263), 8 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (34), 9 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-16 08:12:09,198 INFO L276 IsEmpty]: Start isEmpty. Operand 20994 states and 27154 transitions. [2024-11-16 08:12:09,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-16 08:12:09,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:12:09,215 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:09,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 08:12:09,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:12:09,416 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:12:09,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:12:09,416 INFO L85 PathProgramCache]: Analyzing trace with hash 220848326, now seen corresponding path program 1 times [2024-11-16 08:12:09,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:12:09,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727010733] [2024-11-16 08:12:09,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:12:09,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:12:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 08:12:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 08:12:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 08:12:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 08:12:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 08:12:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 08:12:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 08:12:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 08:12:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 08:12:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 08:12:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-16 08:12:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 08:12:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-16 08:12:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 08:12:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-16 08:12:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-16 08:12:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:12:09,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:12:09,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727010733] [2024-11-16 08:12:09,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727010733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:12:09,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187198742] [2024-11-16 08:12:09,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:12:09,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:12:09,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:12:09,911 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:12:09,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 08:12:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:12:10,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-16 08:12:10,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:12:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 73 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 08:12:10,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:12:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 08:12:11,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187198742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:12:11,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:12:11,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2024-11-16 08:12:11,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106973032] [2024-11-16 08:12:11,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:12:11,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 08:12:11,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:12:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 08:12:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:12:11,048 INFO L87 Difference]: Start difference. First operand 20994 states and 27154 transitions. Second operand has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 21 states have internal predecessors, (259), 8 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (34), 9 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-16 08:12:15,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:12:15,844 INFO L93 Difference]: Finished difference Result 44269 states and 57332 transitions. [2024-11-16 08:12:15,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:12:15,845 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 21 states have internal predecessors, (259), 8 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (34), 9 states have call predecessors, (34), 8 states have call successors, (34) Word has length 181 [2024-11-16 08:12:15,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:12:15,973 INFO L225 Difference]: With dead ends: 44269 [2024-11-16 08:12:15,973 INFO L226 Difference]: Without dead ends: 24852 [2024-11-16 08:12:16,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 08:12:16,021 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 1153 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:12:16,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 3576 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:12:16,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24852 states. [2024-11-16 08:12:19,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24852 to 24587. [2024-11-16 08:12:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24587 states, 18093 states have (on average 1.2927651577958326) internal successors, (23390), 18272 states have internal predecessors, (23390), 4189 states have call successors, (4189), 2304 states have call predecessors, (4189), 2304 states have return successors, (4189), 4010 states have call predecessors, (4189), 4189 states have call successors, (4189) [2024-11-16 08:12:19,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24587 states to 24587 states and 31768 transitions. [2024-11-16 08:12:19,703 INFO L78 Accepts]: Start accepts. Automaton has 24587 states and 31768 transitions. Word has length 181 [2024-11-16 08:12:19,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:12:19,703 INFO L471 AbstractCegarLoop]: Abstraction has 24587 states and 31768 transitions. [2024-11-16 08:12:19,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.772727272727273) internal successors, (259), 21 states have internal predecessors, (259), 8 states have call successors, (34), 5 states have call predecessors, (34), 6 states have return successors, (34), 9 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-16 08:12:19,704 INFO L276 IsEmpty]: Start isEmpty. Operand 24587 states and 31768 transitions. [2024-11-16 08:12:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-16 08:12:19,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:12:19,717 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 08:12:19,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 08:12:19,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-16 08:12:19,918 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:12:19,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:12:19,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1759912650, now seen corresponding path program 1 times [2024-11-16 08:12:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:12:19,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820116728] [2024-11-16 08:12:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:12:19,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:12:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat