./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.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/combinations/Problem05_label46+token_ring.10.cil-2.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 24feb2eb47843fcae857e84ddd5aa58dae94843db909f56f0ca240268764bef9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:15:21,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:15:21,626 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:15:21,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:15:21,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:15:21,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:15:21,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:15:21,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:15:21,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:15:21,654 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:15:21,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:15:21,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:15:21,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:15:21,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:15:21,657 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:15:21,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:15:21,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:15:21,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:15:21,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:15:21,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:15:21,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:15:21,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:15:21,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:15:21,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:15:21,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:15:21,661 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:15:21,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:15:21,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:15:21,661 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:15:21,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:15:21,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:15:21,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:15:21,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:15:21,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:15:21,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:15:21,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:15:21,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:15:21,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:15:21,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:15:21,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:15:21,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:15:21,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:15:21,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24feb2eb47843fcae857e84ddd5aa58dae94843db909f56f0ca240268764bef9 [2024-11-16 09:15:21,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:15:21,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:15:21,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:15:21,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:15:21,887 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:15:21,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c [2024-11-16 09:15:23,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:15:23,544 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:15:23,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c [2024-11-16 09:15:23,584 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cfd2d6ee/e003900ce60145ae89fb71ce35043529/FLAG0883e7c56 [2024-11-16 09:15:23,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cfd2d6ee/e003900ce60145ae89fb71ce35043529 [2024-11-16 09:15:23,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:15:23,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:15:23,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:15:23,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:15:23,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:15:23,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:15:23" (1/1) ... [2024-11-16 09:15:23,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a8e7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:23, skipping insertion in model container [2024-11-16 09:15:23,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:15:23" (1/1) ... [2024-11-16 09:15:23,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:15:24,959 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/combinations/Problem05_label46+token_ring.10.cil-2.c[382357,382370] [2024-11-16 09:15:24,996 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/combinations/Problem05_label46+token_ring.10.cil-2.c[383339,383352] [2024-11-16 09:15:25,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:15:25,220 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:15:25,848 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/combinations/Problem05_label46+token_ring.10.cil-2.c[382357,382370] [2024-11-16 09:15:25,856 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/combinations/Problem05_label46+token_ring.10.cil-2.c[383339,383352] [2024-11-16 09:15:25,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:15:25,919 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:15:25,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25 WrapperNode [2024-11-16 09:15:25,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:15:25,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:15:25,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:15:25,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:15:25,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:25,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,360 INFO L138 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13099 [2024-11-16 09:15:26,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:15:26,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:15:26,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:15:26,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:15:26,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,497 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 09:15:26,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,638 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,711 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:15:26,748 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:15:26,748 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:15:26,748 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:15:26,749 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (1/1) ... [2024-11-16 09:15:26,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:15:26,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:15:26,784 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 09:15:26,797 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 09:15:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:15:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-16 09:15:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-16 09:15:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-16 09:15:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-16 09:15:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-16 09:15:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-16 09:15:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-16 09:15:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-16 09:15:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-16 09:15:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-16 09:15:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-16 09:15:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-16 09:15:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:15:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:15:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:15:27,008 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:15:27,010 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:15:32,752 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-16 09:15:32,752 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-16 09:15:32,752 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-16 09:15:32,752 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-16 09:15:32,753 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-16 09:15:32,753 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-16 09:15:32,753 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-16 09:15:32,933 INFO L? ?]: Removed 1743 outVars from TransFormulas that were not future-live. [2024-11-16 09:15:32,933 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:15:32,985 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:15:32,985 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:15:32,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:15:32 BoogieIcfgContainer [2024-11-16 09:15:32,986 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:15:32,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:15:32,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:15:32,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:15:32,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:15:23" (1/3) ... [2024-11-16 09:15:32,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735f978c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:15:32, skipping insertion in model container [2024-11-16 09:15:32,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:15:25" (2/3) ... [2024-11-16 09:15:32,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735f978c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:15:32, skipping insertion in model container [2024-11-16 09:15:32,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:15:32" (3/3) ... [2024-11-16 09:15:32,993 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.10.cil-2.c [2024-11-16 09:15:33,007 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:15:33,007 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:15:33,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:15:33,093 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;@62bda572, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:15:33,093 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:15:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 2581 states, 2548 states have (on average 1.8237833594976451) internal successors, (4647), 2551 states have internal predecessors, (4647), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 09:15:33,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:33,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:33,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:33,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:33,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:33,121 INFO L85 PathProgramCache]: Analyzing trace with hash 652909400, now seen corresponding path program 1 times [2024-11-16 09:15:33,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432057217] [2024-11-16 09:15:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:33,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:33,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:33,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:33,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:33,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:33,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:33,681 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 09:15:33,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:33,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432057217] [2024-11-16 09:15:33,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432057217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:33,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:33,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 09:15:33,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016348965] [2024-11-16 09:15:33,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:33,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 09:15:33,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:33,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 09:15:33,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 09:15:33,712 INFO L87 Difference]: Start difference. First operand has 2581 states, 2548 states have (on average 1.8237833594976451) internal successors, (4647), 2551 states have internal predecessors, (4647), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:36,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:36,019 INFO L93 Difference]: Finished difference Result 5748 states and 10351 transitions. [2024-11-16 09:15:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 09:15:36,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:36,043 INFO L225 Difference]: With dead ends: 5748 [2024-11-16 09:15:36,044 INFO L226 Difference]: Without dead ends: 3113 [2024-11-16 09:15:36,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:15:36,057 INFO L432 NwaCegarLoop]: 4356 mSDtfsCounter, 5409 mSDsluCounter, 13122 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5426 SdHoareTripleChecker+Valid, 17478 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:36,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5426 Valid, 17478 Invalid, 2030 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:15:36,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2024-11-16 09:15:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 2873. [2024-11-16 09:15:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2815 states have (on average 1.7754884547069272) internal successors, (4998), 2818 states have internal predecessors, (4998), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-11-16 09:15:36,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 5087 transitions. [2024-11-16 09:15:36,204 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 5087 transitions. Word has length 161 [2024-11-16 09:15:36,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:36,205 INFO L471 AbstractCegarLoop]: Abstraction has 2873 states and 5087 transitions. [2024-11-16 09:15:36,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:36,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 5087 transitions. [2024-11-16 09:15:36,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:36,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:36,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:36,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:15:36,213 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:36,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1822350934, now seen corresponding path program 1 times [2024-11-16 09:15:36,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:36,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213845465] [2024-11-16 09:15:36,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:36,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:36,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:36,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:36,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:36,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:36,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:36,451 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 09:15:36,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:36,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213845465] [2024-11-16 09:15:36,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213845465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:36,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:36,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:36,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340993686] [2024-11-16 09:15:36,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:36,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:36,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:36,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:36,455 INFO L87 Difference]: Start difference. First operand 2873 states and 5087 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:38,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:38,015 INFO L93 Difference]: Finished difference Result 3862 states and 6629 transitions. [2024-11-16 09:15:38,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:15:38,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:38,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:38,027 INFO L225 Difference]: With dead ends: 3862 [2024-11-16 09:15:38,028 INFO L226 Difference]: Without dead ends: 3130 [2024-11-16 09:15:38,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:15:38,032 INFO L432 NwaCegarLoop]: 4270 mSDtfsCounter, 4975 mSDsluCounter, 16846 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4993 SdHoareTripleChecker+Valid, 21116 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:38,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4993 Valid, 21116 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 09:15:38,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2024-11-16 09:15:38,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2873. [2024-11-16 09:15:38,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2815 states have (on average 1.774777975133215) internal successors, (4996), 2818 states have internal predecessors, (4996), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2024-11-16 09:15:38,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 5085 transitions. [2024-11-16 09:15:38,110 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 5085 transitions. Word has length 161 [2024-11-16 09:15:38,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:38,111 INFO L471 AbstractCegarLoop]: Abstraction has 2873 states and 5085 transitions. [2024-11-16 09:15:38,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 5085 transitions. [2024-11-16 09:15:38,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:38,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:38,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:38,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:15:38,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:38,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:38,116 INFO L85 PathProgramCache]: Analyzing trace with hash 928416023, now seen corresponding path program 1 times [2024-11-16 09:15:38,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:38,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788130433] [2024-11-16 09:15:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:38,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:38,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:38,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:38,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:38,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:38,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:38,343 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 09:15:38,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:38,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788130433] [2024-11-16 09:15:38,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788130433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:38,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:38,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:38,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879199467] [2024-11-16 09:15:38,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:38,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:38,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:38,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:38,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:38,345 INFO L87 Difference]: Start difference. First operand 2873 states and 5085 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:40,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:40,997 INFO L93 Difference]: Finished difference Result 4349 states and 7370 transitions. [2024-11-16 09:15:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:15:40,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:40,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:41,009 INFO L225 Difference]: With dead ends: 4349 [2024-11-16 09:15:41,010 INFO L226 Difference]: Without dead ends: 3617 [2024-11-16 09:15:41,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:15:41,013 INFO L432 NwaCegarLoop]: 4540 mSDtfsCounter, 5357 mSDsluCounter, 17909 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5374 SdHoareTripleChecker+Valid, 22449 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:41,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5374 Valid, 22449 Invalid, 3104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 09:15:41,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2024-11-16 09:15:41,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 3223. [2024-11-16 09:15:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 3139 states have (on average 1.7432303281299777) internal successors, (5472), 3143 states have internal predecessors, (5472), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2024-11-16 09:15:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 5601 transitions. [2024-11-16 09:15:41,116 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 5601 transitions. Word has length 161 [2024-11-16 09:15:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:41,116 INFO L471 AbstractCegarLoop]: Abstraction has 3223 states and 5601 transitions. [2024-11-16 09:15:41,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 5601 transitions. [2024-11-16 09:15:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:41,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:41,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:41,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:15:41,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:41,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:41,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2007958070, now seen corresponding path program 1 times [2024-11-16 09:15:41,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:41,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763691602] [2024-11-16 09:15:41,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:41,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:41,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:41,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:41,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:41,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:41,369 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 09:15:41,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:41,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763691602] [2024-11-16 09:15:41,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763691602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:41,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:41,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:41,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299617220] [2024-11-16 09:15:41,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:41,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:41,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:41,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:41,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:41,372 INFO L87 Difference]: Start difference. First operand 3223 states and 5601 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:43,717 INFO L93 Difference]: Finished difference Result 5647 states and 9344 transitions. [2024-11-16 09:15:43,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:15:43,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:43,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:43,730 INFO L225 Difference]: With dead ends: 5647 [2024-11-16 09:15:43,730 INFO L226 Difference]: Without dead ends: 4565 [2024-11-16 09:15:43,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:15:43,733 INFO L432 NwaCegarLoop]: 4294 mSDtfsCounter, 5453 mSDsluCounter, 17163 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5470 SdHoareTripleChecker+Valid, 21457 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:43,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5470 Valid, 21457 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 09:15:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2024-11-16 09:15:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 3925. [2024-11-16 09:15:43,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3925 states, 3789 states have (on average 1.6962259171285299) internal successors, (6427), 3795 states have internal predecessors, (6427), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2024-11-16 09:15:43,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3925 states to 3925 states and 6640 transitions. [2024-11-16 09:15:43,815 INFO L78 Accepts]: Start accepts. Automaton has 3925 states and 6640 transitions. Word has length 161 [2024-11-16 09:15:43,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:43,816 INFO L471 AbstractCegarLoop]: Abstraction has 3925 states and 6640 transitions. [2024-11-16 09:15:43,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:43,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3925 states and 6640 transitions. [2024-11-16 09:15:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:43,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:43,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:43,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:15:43,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:43,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:43,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2042782007, now seen corresponding path program 1 times [2024-11-16 09:15:43,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:43,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331610100] [2024-11-16 09:15:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:43,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:43,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:43,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:43,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:44,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:44,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:44,011 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 09:15:44,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:44,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331610100] [2024-11-16 09:15:44,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331610100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:44,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:44,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:44,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779594098] [2024-11-16 09:15:44,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:44,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:44,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:44,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:44,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:44,016 INFO L87 Difference]: Start difference. First operand 3925 states and 6640 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:46,328 INFO L93 Difference]: Finished difference Result 8159 states and 13139 transitions. [2024-11-16 09:15:46,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:15:46,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:46,347 INFO L225 Difference]: With dead ends: 8159 [2024-11-16 09:15:46,347 INFO L226 Difference]: Without dead ends: 6375 [2024-11-16 09:15:46,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:15:46,354 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 5351 mSDsluCounter, 17909 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5368 SdHoareTripleChecker+Valid, 22447 SdHoareTripleChecker+Invalid, 3085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:46,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5368 Valid, 22447 Invalid, 3085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:15:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6375 states. [2024-11-16 09:15:46,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6375 to 5331. [2024-11-16 09:15:46,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5091 states have (on average 1.6379886073462975) internal successors, (8339), 5101 states have internal predecessors, (8339), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2024-11-16 09:15:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 8726 transitions. [2024-11-16 09:15:46,489 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 8726 transitions. Word has length 161 [2024-11-16 09:15:46,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:46,490 INFO L471 AbstractCegarLoop]: Abstraction has 5331 states and 8726 transitions. [2024-11-16 09:15:46,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 8726 transitions. [2024-11-16 09:15:46,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:46,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:46,493 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:46,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:15:46,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:46,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:46,494 INFO L85 PathProgramCache]: Analyzing trace with hash 104242710, now seen corresponding path program 1 times [2024-11-16 09:15:46,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:46,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55377281] [2024-11-16 09:15:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:46,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:46,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:46,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:46,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:46,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:46,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:46,769 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 09:15:46,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:46,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55377281] [2024-11-16 09:15:46,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55377281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:46,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:46,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000203161] [2024-11-16 09:15:46,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:46,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:46,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:46,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:46,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:46,772 INFO L87 Difference]: Start difference. First operand 5331 states and 8726 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:49,247 INFO L93 Difference]: Finished difference Result 13183 states and 20747 transitions. [2024-11-16 09:15:49,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:15:49,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:49,278 INFO L225 Difference]: With dead ends: 13183 [2024-11-16 09:15:49,278 INFO L226 Difference]: Without dead ends: 9993 [2024-11-16 09:15:49,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:15:49,289 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 5347 mSDsluCounter, 17909 mSDsCounter, 0 mSdLazyCounter, 3017 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5364 SdHoareTripleChecker+Valid, 22447 SdHoareTripleChecker+Invalid, 3076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:49,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5364 Valid, 22447 Invalid, 3076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3017 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:15:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9993 states. [2024-11-16 09:15:49,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9993 to 8149. [2024-11-16 09:15:49,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8149 states, 7701 states have (on average 1.580444098169069) internal successors, (12171), 7719 states have internal predecessors, (12171), 328 states have call successors, (328), 102 states have call predecessors, (328), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2024-11-16 09:15:49,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8149 states to 8149 states and 12924 transitions. [2024-11-16 09:15:49,591 INFO L78 Accepts]: Start accepts. Automaton has 8149 states and 12924 transitions. Word has length 161 [2024-11-16 09:15:49,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:49,591 INFO L471 AbstractCegarLoop]: Abstraction has 8149 states and 12924 transitions. [2024-11-16 09:15:49,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8149 states and 12924 transitions. [2024-11-16 09:15:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:49,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:49,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:49,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:15:49,597 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:49,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:49,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1343764137, now seen corresponding path program 1 times [2024-11-16 09:15:49,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:49,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965437797] [2024-11-16 09:15:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:49,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:49,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:49,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:49,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:49,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:49,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:49,772 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 09:15:49,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:49,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965437797] [2024-11-16 09:15:49,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965437797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:49,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:49,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:49,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032592948] [2024-11-16 09:15:49,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:49,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:49,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:49,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:49,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:49,774 INFO L87 Difference]: Start difference. First operand 8149 states and 12924 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:52,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:52,496 INFO L93 Difference]: Finished difference Result 23231 states and 36023 transitions. [2024-11-16 09:15:52,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:15:52,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:52,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:52,545 INFO L225 Difference]: With dead ends: 23231 [2024-11-16 09:15:52,545 INFO L226 Difference]: Without dead ends: 17223 [2024-11-16 09:15:52,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:15:52,568 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 5343 mSDsluCounter, 17909 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5360 SdHoareTripleChecker+Valid, 22447 SdHoareTripleChecker+Invalid, 3067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:52,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5360 Valid, 22447 Invalid, 3067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 3008 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:15:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17223 states. [2024-11-16 09:15:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17223 to 13799. [2024-11-16 09:15:53,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13799 states, 12935 states have (on average 1.534982605334364) internal successors, (19855), 12969 states have internal predecessors, (19855), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-11-16 09:15:53,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13799 states to 13799 states and 21394 transitions. [2024-11-16 09:15:53,067 INFO L78 Accepts]: Start accepts. Automaton has 13799 states and 21394 transitions. Word has length 161 [2024-11-16 09:15:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:53,067 INFO L471 AbstractCegarLoop]: Abstraction has 13799 states and 21394 transitions. [2024-11-16 09:15:53,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 13799 states and 21394 transitions. [2024-11-16 09:15:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:53,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:53,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:53,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:15:53,074 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:53,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:53,077 INFO L85 PathProgramCache]: Analyzing trace with hash -5000714, now seen corresponding path program 1 times [2024-11-16 09:15:53,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:53,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394404549] [2024-11-16 09:15:53,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:53,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:53,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:53,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:53,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:53,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:53,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:53,257 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 09:15:53,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:53,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394404549] [2024-11-16 09:15:53,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394404549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:53,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:53,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:53,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795654960] [2024-11-16 09:15:53,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:53,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:53,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:53,259 INFO L87 Difference]: Start difference. First operand 13799 states and 21394 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:54,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:54,755 INFO L93 Difference]: Finished difference Result 29078 states and 45093 transitions. [2024-11-16 09:15:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:15:54,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:54,797 INFO L225 Difference]: With dead ends: 29078 [2024-11-16 09:15:54,798 INFO L226 Difference]: Without dead ends: 17420 [2024-11-16 09:15:54,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:15:54,824 INFO L432 NwaCegarLoop]: 4269 mSDtfsCounter, 5124 mSDsluCounter, 12667 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 16936 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:54,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 16936 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 09:15:54,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17420 states. [2024-11-16 09:15:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17420 to 13799. [2024-11-16 09:15:55,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13799 states, 12935 states have (on average 1.5324313877077695) internal successors, (19822), 12969 states have internal predecessors, (19822), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-11-16 09:15:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13799 states to 13799 states and 21361 transitions. [2024-11-16 09:15:55,258 INFO L78 Accepts]: Start accepts. Automaton has 13799 states and 21361 transitions. Word has length 161 [2024-11-16 09:15:55,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:55,258 INFO L471 AbstractCegarLoop]: Abstraction has 13799 states and 21361 transitions. [2024-11-16 09:15:55,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 13799 states and 21361 transitions. [2024-11-16 09:15:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:55,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:55,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:55,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:15:55,266 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:55,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash 176732535, now seen corresponding path program 1 times [2024-11-16 09:15:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:55,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686514115] [2024-11-16 09:15:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:55,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:55,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:55,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:55,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:55,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:55,420 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 09:15:55,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:55,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686514115] [2024-11-16 09:15:55,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686514115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:55,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:55,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:55,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146385195] [2024-11-16 09:15:55,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:55,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:55,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:55,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:55,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:55,422 INFO L87 Difference]: Start difference. First operand 13799 states and 21361 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:56,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:15:56,965 INFO L93 Difference]: Finished difference Result 29043 states and 44925 transitions. [2024-11-16 09:15:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:15:56,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:15:56,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:15:57,007 INFO L225 Difference]: With dead ends: 29043 [2024-11-16 09:15:57,007 INFO L226 Difference]: Without dead ends: 17385 [2024-11-16 09:15:57,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:15:57,032 INFO L432 NwaCegarLoop]: 4269 mSDtfsCounter, 5122 mSDsluCounter, 12667 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5140 SdHoareTripleChecker+Valid, 16936 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 09:15:57,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5140 Valid, 16936 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 09:15:57,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17385 states. [2024-11-16 09:15:57,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17385 to 13799. [2024-11-16 09:15:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13799 states, 12935 states have (on average 1.529880170081175) internal successors, (19789), 12969 states have internal predecessors, (19789), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2024-11-16 09:15:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13799 states to 13799 states and 21328 transitions. [2024-11-16 09:15:57,551 INFO L78 Accepts]: Start accepts. Automaton has 13799 states and 21328 transitions. Word has length 161 [2024-11-16 09:15:57,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:15:57,551 INFO L471 AbstractCegarLoop]: Abstraction has 13799 states and 21328 transitions. [2024-11-16 09:15:57,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:15:57,552 INFO L276 IsEmpty]: Start isEmpty. Operand 13799 states and 21328 transitions. [2024-11-16 09:15:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:15:57,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:15:57,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:15:57,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:15:57,559 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:15:57,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:15:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash 321142230, now seen corresponding path program 1 times [2024-11-16 09:15:57,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:15:57,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895851320] [2024-11-16 09:15:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:15:57,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:15:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:57,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:15:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:57,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:15:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:57,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:15:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:57,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:15:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:57,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:15:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:15:57,728 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 09:15:57,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:15:57,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895851320] [2024-11-16 09:15:57,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895851320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:15:57,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:15:57,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:15:57,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664106159] [2024-11-16 09:15:57,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:15:57,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:15:57,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:15:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:15:57,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:15:57,730 INFO L87 Difference]: Start difference. First operand 13799 states and 21328 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:01,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:01,001 INFO L93 Difference]: Finished difference Result 43255 states and 66299 transitions. [2024-11-16 09:16:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 09:16:01,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:16:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:01,070 INFO L225 Difference]: With dead ends: 43255 [2024-11-16 09:16:01,071 INFO L226 Difference]: Without dead ends: 31597 [2024-11-16 09:16:01,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-16 09:16:01,096 INFO L432 NwaCegarLoop]: 4538 mSDtfsCounter, 5323 mSDsluCounter, 17909 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5340 SdHoareTripleChecker+Valid, 22447 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:01,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5340 Valid, 22447 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2951 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 09:16:01,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31597 states. [2024-11-16 09:16:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31597 to 25193. [2024-11-16 09:16:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25193 states, 23497 states have (on average 1.4981912584585266) internal successors, (35203), 23563 states have internal predecessors, (35203), 1240 states have call successors, (1240), 390 states have call predecessors, (1240), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2024-11-16 09:16:02,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25193 states to 25193 states and 38476 transitions. [2024-11-16 09:16:02,022 INFO L78 Accepts]: Start accepts. Automaton has 25193 states and 38476 transitions. Word has length 161 [2024-11-16 09:16:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:02,022 INFO L471 AbstractCegarLoop]: Abstraction has 25193 states and 38476 transitions. [2024-11-16 09:16:02,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 25193 states and 38476 transitions. [2024-11-16 09:16:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:16:02,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:02,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:16:02,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:16:02,036 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:02,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:02,036 INFO L85 PathProgramCache]: Analyzing trace with hash 48705943, now seen corresponding path program 1 times [2024-11-16 09:16:02,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:02,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944494305] [2024-11-16 09:16:02,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:02,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:02,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:02,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:16:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:02,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:16:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:02,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:16:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:02,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:16:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:02,187 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 09:16:02,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:02,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944494305] [2024-11-16 09:16:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944494305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:02,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:02,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:02,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202893618] [2024-11-16 09:16:02,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:02,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:02,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:02,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:02,188 INFO L87 Difference]: Start difference. First operand 25193 states and 38476 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:03,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:03,990 INFO L93 Difference]: Finished difference Result 54993 states and 84781 transitions. [2024-11-16 09:16:03,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:16:03,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:16:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:04,066 INFO L225 Difference]: With dead ends: 54993 [2024-11-16 09:16:04,067 INFO L226 Difference]: Without dead ends: 31941 [2024-11-16 09:16:04,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:16:04,107 INFO L432 NwaCegarLoop]: 4269 mSDtfsCounter, 5121 mSDsluCounter, 12667 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5139 SdHoareTripleChecker+Valid, 16936 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:04,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5139 Valid, 16936 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:16:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31941 states. [2024-11-16 09:16:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31941 to 25193. [2024-11-16 09:16:05,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25193 states, 23497 states have (on average 1.495424947865685) internal successors, (35138), 23563 states have internal predecessors, (35138), 1240 states have call successors, (1240), 390 states have call predecessors, (1240), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2024-11-16 09:16:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25193 states to 25193 states and 38411 transitions. [2024-11-16 09:16:05,102 INFO L78 Accepts]: Start accepts. Automaton has 25193 states and 38411 transitions. Word has length 161 [2024-11-16 09:16:05,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:05,103 INFO L471 AbstractCegarLoop]: Abstraction has 25193 states and 38411 transitions. [2024-11-16 09:16:05,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 25193 states and 38411 transitions. [2024-11-16 09:16:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:16:05,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:05,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:16:05,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:16:05,115 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:05,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:05,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1761197642, now seen corresponding path program 1 times [2024-11-16 09:16:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:05,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995146308] [2024-11-16 09:16:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:05,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:05,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:05,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:16:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:16:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:05,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:16:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:05,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:16:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:05,272 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 09:16:05,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:05,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995146308] [2024-11-16 09:16:05,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995146308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:05,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:05,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:05,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562047357] [2024-11-16 09:16:05,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:05,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:05,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:05,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:05,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:05,274 INFO L87 Difference]: Start difference. First operand 25193 states and 38411 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:09,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:09,707 INFO L93 Difference]: Finished difference Result 92911 states and 142137 transitions. [2024-11-16 09:16:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:16:09,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:16:09,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:09,889 INFO L225 Difference]: With dead ends: 92911 [2024-11-16 09:16:09,889 INFO L226 Difference]: Without dead ends: 69859 [2024-11-16 09:16:09,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:16:09,938 INFO L432 NwaCegarLoop]: 4296 mSDtfsCounter, 5821 mSDsluCounter, 17159 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 21455 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:09,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5849 Valid, 21455 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2495 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 09:16:09,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69859 states. [2024-11-16 09:16:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69859 to 47911. [2024-11-16 09:16:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47911 states, 44615 states have (on average 1.4775972206656953) internal successors, (65923), 44745 states have internal predecessors, (65923), 2392 states have call successors, (2392), 774 states have call predecessors, (2392), 902 states have return successors, (4707), 2519 states have call predecessors, (4707), 2392 states have call successors, (4707) [2024-11-16 09:16:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47911 states to 47911 states and 73022 transitions. [2024-11-16 09:16:11,939 INFO L78 Accepts]: Start accepts. Automaton has 47911 states and 73022 transitions. Word has length 161 [2024-11-16 09:16:11,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:11,939 INFO L471 AbstractCegarLoop]: Abstraction has 47911 states and 73022 transitions. [2024-11-16 09:16:11,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 47911 states and 73022 transitions. [2024-11-16 09:16:11,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:16:11,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:11,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:16:11,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:16:11,963 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:11,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2059743671, now seen corresponding path program 1 times [2024-11-16 09:16:11,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:11,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415576505] [2024-11-16 09:16:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:11,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:12,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:12,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:16:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:12,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:16:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:12,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:16:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:12,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:16:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:12,119 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 09:16:12,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:12,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415576505] [2024-11-16 09:16:12,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415576505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:12,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:12,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:12,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362456089] [2024-11-16 09:16:12,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:12,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:12,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:12,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:12,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:12,121 INFO L87 Difference]: Start difference. First operand 47911 states and 73022 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:15,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:15,785 INFO L93 Difference]: Finished difference Result 106503 states and 165047 transitions. [2024-11-16 09:16:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 09:16:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:16:15,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:15,941 INFO L225 Difference]: With dead ends: 106503 [2024-11-16 09:16:15,941 INFO L226 Difference]: Without dead ends: 60733 [2024-11-16 09:16:16,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-16 09:16:16,029 INFO L432 NwaCegarLoop]: 4269 mSDtfsCounter, 4976 mSDsluCounter, 16844 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4994 SdHoareTripleChecker+Valid, 21113 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:16,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4994 Valid, 21113 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 09:16:16,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60733 states. [2024-11-16 09:16:18,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60733 to 47911. [2024-11-16 09:16:18,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47911 states, 44615 states have (on average 1.474705816429452) internal successors, (65794), 44745 states have internal predecessors, (65794), 2392 states have call successors, (2392), 774 states have call predecessors, (2392), 902 states have return successors, (4707), 2519 states have call predecessors, (4707), 2392 states have call successors, (4707) [2024-11-16 09:16:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47911 states to 47911 states and 72893 transitions. [2024-11-16 09:16:18,387 INFO L78 Accepts]: Start accepts. Automaton has 47911 states and 72893 transitions. Word has length 161 [2024-11-16 09:16:18,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:18,387 INFO L471 AbstractCegarLoop]: Abstraction has 47911 states and 72893 transitions. [2024-11-16 09:16:18,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:18,388 INFO L276 IsEmpty]: Start isEmpty. Operand 47911 states and 72893 transitions. [2024-11-16 09:16:18,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:16:18,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:18,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:16:18,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:16:18,409 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:18,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:18,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1767357846, now seen corresponding path program 1 times [2024-11-16 09:16:18,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:18,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051966389] [2024-11-16 09:16:18,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:18,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:18,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:18,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:16:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:18,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:16:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:18,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:16:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:18,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:16:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:18,562 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 09:16:18,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:18,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051966389] [2024-11-16 09:16:18,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051966389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:18,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:18,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:18,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68818101] [2024-11-16 09:16:18,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:18,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:18,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:18,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:18,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:18,564 INFO L87 Difference]: Start difference. First operand 47911 states and 72893 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:26,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:16:26,429 INFO L93 Difference]: Finished difference Result 178909 states and 275050 transitions. [2024-11-16 09:16:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 09:16:26,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 161 [2024-11-16 09:16:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:16:26,740 INFO L225 Difference]: With dead ends: 178909 [2024-11-16 09:16:26,740 INFO L226 Difference]: Without dead ends: 133139 [2024-11-16 09:16:26,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:16:26,838 INFO L432 NwaCegarLoop]: 4536 mSDtfsCounter, 5629 mSDsluCounter, 17901 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 22437 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:16:26,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5657 Valid, 22437 Invalid, 2940 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 09:16:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133139 states. [2024-11-16 09:16:31,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133139 to 93407. [2024-11-16 09:16:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93407 states, 86975 states have (on average 1.4650301810865192) internal successors, (127421), 87233 states have internal predecessors, (127421), 4632 states have call successors, (4632), 1542 states have call predecessors, (4632), 1798 states have return successors, (11449), 4887 states have call predecessors, (11449), 4632 states have call successors, (11449) [2024-11-16 09:16:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93407 states to 93407 states and 143502 transitions. [2024-11-16 09:16:31,782 INFO L78 Accepts]: Start accepts. Automaton has 93407 states and 143502 transitions. Word has length 161 [2024-11-16 09:16:31,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:16:31,783 INFO L471 AbstractCegarLoop]: Abstraction has 93407 states and 143502 transitions. [2024-11-16 09:16:31,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 09:16:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 93407 states and 143502 transitions. [2024-11-16 09:16:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 09:16:31,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:16:31,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:16:31,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:16:31,815 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:16:31,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:16:31,816 INFO L85 PathProgramCache]: Analyzing trace with hash -597378601, now seen corresponding path program 1 times [2024-11-16 09:16:31,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:16:31,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044427926] [2024-11-16 09:16:31,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:16:31,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:16:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:32,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 09:16:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:32,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 09:16:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:32,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 09:16:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:32,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 09:16:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:32,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 09:16:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:16:32,158 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 09:16:32,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:16:32,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044427926] [2024-11-16 09:16:32,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044427926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:16:32,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:16:32,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 09:16:32,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121607451] [2024-11-16 09:16:32,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:16:32,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 09:16:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:16:32,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 09:16:32,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 09:16:32,160 INFO L87 Difference]: Start difference. First operand 93407 states and 143502 transitions. Second operand has 7 states, 7 states have (on average 21.571428571428573) internal successors, (151), 5 states have internal predecessors, (151), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)