./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.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 eb34721bf39b8c345e8997284756581f81ddbf5d57990eeac4742dbd2546fd8d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:00:59,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:00:59,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:00:59,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:00:59,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:00:59,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:00:59,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:00:59,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:00:59,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:00:59,784 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:00:59,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:00:59,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:00:59,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:00:59,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:00:59,786 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:00:59,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:00:59,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:00:59,787 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:00:59,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:00:59,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:00:59,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:00:59,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:00:59,793 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:00:59,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:00:59,793 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:00:59,793 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:00:59,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:00:59,794 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:00:59,794 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:00:59,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:00:59,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:00:59,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:00:59,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:00:59,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:00:59,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:00:59,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:00:59,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:00:59,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:00:59,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:00:59,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:00:59,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:00:59,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:00:59,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb34721bf39b8c345e8997284756581f81ddbf5d57990eeac4742dbd2546fd8d [2024-11-10 00:01:00,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:01:00,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:01:00,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:01:00,084 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:01:00,085 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:01:00,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-10 00:01:01,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:01:01,922 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:01:01,923 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-10 00:01:01,939 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafb6c15f/5a242cb05a61402fa2b676ab0d9b975d/FLAG009b33a64 [2024-11-10 00:01:01,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafb6c15f/5a242cb05a61402fa2b676ab0d9b975d [2024-11-10 00:01:01,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:01:01,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:01:01,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:01:01,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:01:01,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:01:01,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:01:01" (1/1) ... [2024-11-10 00:01:01,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55493192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:01, skipping insertion in model container [2024-11-10 00:01:01,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:01:01" (1/1) ... [2024-11-10 00:01:02,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:01:02,256 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7979,7992] [2024-11-10 00:01:02,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:01:02,332 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:01:02,382 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[7979,7992] [2024-11-10 00:01:02,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:01:02,464 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:01:02,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02 WrapperNode [2024-11-10 00:01:02,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:01:02,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:01:02,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:01:02,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:01:02,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,522 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 686 [2024-11-10 00:01:02,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:01:02,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:01:02,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:01:02,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:01:02,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,572 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]. [2024-11-10 00:01:02,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,573 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:01:02,600 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:01:02,600 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:01:02,600 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:01:02,601 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (1/1) ... [2024-11-10 00:01:02,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:01:02,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:01:02,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:01:02,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 00:01:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:01:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:01:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:01:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:01:02,833 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:01:02,835 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:01:03,536 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L316: havoc main_~node1__m1~1#1;havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:01:03,536 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L316: havoc main_~node1__m1~1#1;havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:01:03,536 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L316: havoc main_~node1__m1~1#1;havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:01:03,536 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L316: havoc main_~node1__m1~1#1;havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,537 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,538 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,539 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,539 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,539 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,539 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,539 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,541 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,541 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,541 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,541 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,542 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,542 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,542 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,542 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,542 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L184: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:01:03,542 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L664: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-10 00:01:03,543 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L202: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,543 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L202: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,543 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L220: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,543 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L220: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,545 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L238: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,545 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L238: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,545 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L619: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-10 00:01:03,545 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-10 00:01:03,545 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-10 00:01:03,545 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-10 00:01:03,546 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1; [2024-11-10 00:01:03,546 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L574: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-10 00:01:03,546 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L345: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-10 00:01:03,546 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L345: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-10 00:01:03,546 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L345: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-10 00:01:03,546 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L345: havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1; [2024-11-10 00:01:03,547 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L709: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-10 00:01:03,547 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L462: havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1; [2024-11-10 00:01:03,547 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L462: havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1; [2024-11-10 00:01:03,547 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L462: havoc main_~node3__m3~2#1;havoc main_~node2__m2~2#1; [2024-11-10 00:01:03,547 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L264: havoc main_~node5____CPAchecker_TMP_0~0#1;havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,547 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L264: havoc main_~node5____CPAchecker_TMP_0~0#1;havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L529: havoc main_~node5____CPAchecker_TMP_0~1#1;havoc main_~node5__m5~2#1;havoc main_~node4__m4~2#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L529: havoc main_~node5____CPAchecker_TMP_0~1#1;havoc main_~node5__m5~2#1;havoc main_~node4__m4~2#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L529: havoc main_~node5____CPAchecker_TMP_0~1#1;havoc main_~node5__m5~2#1;havoc main_~node4__m4~2#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L431: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L431: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L431: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L431: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:01:03,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L431: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-10 00:01:03,589 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-10 00:01:03,589 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:01:03,611 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:01:03,611 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:01:03,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:01:03 BoogieIcfgContainer [2024-11-10 00:01:03,612 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:01:03,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:01:03,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:01:03,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:01:03,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:01:01" (1/3) ... [2024-11-10 00:01:03,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502d79e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:01:03, skipping insertion in model container [2024-11-10 00:01:03,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:01:02" (2/3) ... [2024-11-10 00:01:03,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502d79e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:01:03, skipping insertion in model container [2024-11-10 00:01:03,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:01:03" (3/3) ... [2024-11-10 00:01:03,624 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-11-10 00:01:03,639 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:01:03,639 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:01:03,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:01:03,711 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;@4ce70a8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:01:03,712 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:01:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 152 states have (on average 1.736842105263158) internal successors, (264), 153 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:03,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-10 00:01:03,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:03,729 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] [2024-11-10 00:01:03,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:03,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:03,737 INFO L85 PathProgramCache]: Analyzing trace with hash -306539207, now seen corresponding path program 1 times [2024-11-10 00:01:03,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:03,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986877880] [2024-11-10 00:01:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:03,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:04,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:04,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986877880] [2024-11-10 00:01:04,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986877880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:04,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:04,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688449078] [2024-11-10 00:01:04,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:04,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:04,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:04,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:04,606 INFO L87 Difference]: Start difference. First operand has 154 states, 152 states have (on average 1.736842105263158) internal successors, (264), 153 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:05,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:05,091 INFO L93 Difference]: Finished difference Result 879 states and 1389 transitions. [2024-11-10 00:01:05,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 00:01:05,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-10 00:01:05,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:05,117 INFO L225 Difference]: With dead ends: 879 [2024-11-10 00:01:05,117 INFO L226 Difference]: Without dead ends: 781 [2024-11-10 00:01:05,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:01:05,126 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 1397 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:05,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 3068 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:01:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-11-10 00:01:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 233. [2024-11-10 00:01:05,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 232 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:05,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 334 transitions. [2024-11-10 00:01:05,203 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 334 transitions. Word has length 76 [2024-11-10 00:01:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:05,204 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 334 transitions. [2024-11-10 00:01:05,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 334 transitions. [2024-11-10 00:01:05,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 00:01:05,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:05,208 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] [2024-11-10 00:01:05,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:01:05,209 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:05,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1575128661, now seen corresponding path program 1 times [2024-11-10 00:01:05,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:05,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574492161] [2024-11-10 00:01:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:05,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:05,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:05,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574492161] [2024-11-10 00:01:05,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574492161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:05,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:05,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:05,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857436923] [2024-11-10 00:01:05,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:05,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:05,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:05,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:05,503 INFO L87 Difference]: Start difference. First operand 233 states and 334 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:05,701 INFO L93 Difference]: Finished difference Result 961 states and 1458 transitions. [2024-11-10 00:01:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:01:05,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 00:01:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:05,706 INFO L225 Difference]: With dead ends: 961 [2024-11-10 00:01:05,706 INFO L226 Difference]: Without dead ends: 835 [2024-11-10 00:01:05,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:01:05,727 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 972 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:05,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 1651 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:05,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-10 00:01:05,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 373. [2024-11-10 00:01:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.4838709677419355) internal successors, (552), 372 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:05,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 552 transitions. [2024-11-10 00:01:05,760 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 552 transitions. Word has length 78 [2024-11-10 00:01:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:05,761 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 552 transitions. [2024-11-10 00:01:05,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 552 transitions. [2024-11-10 00:01:05,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 00:01:05,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:05,763 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] [2024-11-10 00:01:05,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:01:05,764 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:05,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash 209747838, now seen corresponding path program 1 times [2024-11-10 00:01:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:05,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010816014] [2024-11-10 00:01:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:05,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:06,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:06,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010816014] [2024-11-10 00:01:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010816014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:06,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:06,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:06,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461656409] [2024-11-10 00:01:06,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:06,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:06,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:06,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:06,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:06,042 INFO L87 Difference]: Start difference. First operand 373 states and 552 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:06,224 INFO L93 Difference]: Finished difference Result 1101 states and 1676 transitions. [2024-11-10 00:01:06,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:01:06,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 00:01:06,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:06,228 INFO L225 Difference]: With dead ends: 1101 [2024-11-10 00:01:06,228 INFO L226 Difference]: Without dead ends: 975 [2024-11-10 00:01:06,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:01:06,231 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 965 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:06,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1340 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:06,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-10 00:01:06,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 575. [2024-11-10 00:01:06,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.5087108013937283) internal successors, (866), 574 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 866 transitions. [2024-11-10 00:01:06,248 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 866 transitions. Word has length 78 [2024-11-10 00:01:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:06,248 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 866 transitions. [2024-11-10 00:01:06,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 866 transitions. [2024-11-10 00:01:06,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 00:01:06,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:06,250 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] [2024-11-10 00:01:06,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:01:06,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:06,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:06,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1497366658, now seen corresponding path program 1 times [2024-11-10 00:01:06,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:06,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910891909] [2024-11-10 00:01:06,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:06,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:06,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:06,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910891909] [2024-11-10 00:01:06,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910891909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:06,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:06,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:06,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473823448] [2024-11-10 00:01:06,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:06,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:06,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:06,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:06,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:06,475 INFO L87 Difference]: Start difference. First operand 575 states and 866 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:06,655 INFO L93 Difference]: Finished difference Result 1236 states and 1886 transitions. [2024-11-10 00:01:06,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:01:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 00:01:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:06,662 INFO L225 Difference]: With dead ends: 1236 [2024-11-10 00:01:06,662 INFO L226 Difference]: Without dead ends: 1110 [2024-11-10 00:01:06,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:01:06,664 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1133 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:06,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 1391 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:06,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-11-10 00:01:06,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 705. [2024-11-10 00:01:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 704 states have (on average 1.5170454545454546) internal successors, (1068), 704 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1068 transitions. [2024-11-10 00:01:06,688 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1068 transitions. Word has length 78 [2024-11-10 00:01:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:06,689 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 1068 transitions. [2024-11-10 00:01:06,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:06,690 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1068 transitions. [2024-11-10 00:01:06,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 00:01:06,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:06,694 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] [2024-11-10 00:01:06,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 00:01:06,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:06,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:06,695 INFO L85 PathProgramCache]: Analyzing trace with hash 540530901, now seen corresponding path program 1 times [2024-11-10 00:01:06,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:06,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429037305] [2024-11-10 00:01:06,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:06,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:06,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:06,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429037305] [2024-11-10 00:01:06,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429037305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:06,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:06,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:06,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393617675] [2024-11-10 00:01:06,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:06,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:06,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:06,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:06,925 INFO L87 Difference]: Start difference. First operand 705 states and 1068 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:07,107 INFO L93 Difference]: Finished difference Result 1361 states and 2080 transitions. [2024-11-10 00:01:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:01:07,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 00:01:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:07,112 INFO L225 Difference]: With dead ends: 1361 [2024-11-10 00:01:07,113 INFO L226 Difference]: Without dead ends: 1235 [2024-11-10 00:01:07,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:01:07,114 INFO L432 NwaCegarLoop]: 377 mSDtfsCounter, 1057 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:07,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1460 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2024-11-10 00:01:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 830. [2024-11-10 00:01:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 1.5223160434258143) internal successors, (1262), 829 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1262 transitions. [2024-11-10 00:01:07,135 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1262 transitions. Word has length 78 [2024-11-10 00:01:07,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:07,135 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1262 transitions. [2024-11-10 00:01:07,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:07,136 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1262 transitions. [2024-11-10 00:01:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 00:01:07,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:07,140 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] [2024-11-10 00:01:07,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 00:01:07,140 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:07,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:07,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1932508053, now seen corresponding path program 1 times [2024-11-10 00:01:07,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:07,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156901083] [2024-11-10 00:01:07,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:07,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:07,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:07,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156901083] [2024-11-10 00:01:07,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156901083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:07,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:07,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:07,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774535940] [2024-11-10 00:01:07,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:07,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:07,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:07,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:07,329 INFO L87 Difference]: Start difference. First operand 830 states and 1262 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:07,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:07,497 INFO L93 Difference]: Finished difference Result 1491 states and 2282 transitions. [2024-11-10 00:01:07,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:01:07,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-10 00:01:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:07,503 INFO L225 Difference]: With dead ends: 1491 [2024-11-10 00:01:07,503 INFO L226 Difference]: Without dead ends: 1365 [2024-11-10 00:01:07,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:01:07,505 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 1107 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:07,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1639 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-10 00:01:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 965. [2024-11-10 00:01:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.5269709543568464) internal successors, (1472), 964 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:07,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1472 transitions. [2024-11-10 00:01:07,529 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1472 transitions. Word has length 78 [2024-11-10 00:01:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:07,529 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1472 transitions. [2024-11-10 00:01:07,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1472 transitions. [2024-11-10 00:01:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-10 00:01:07,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:07,531 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] [2024-11-10 00:01:07,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 00:01:07,531 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:07,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash 412846021, now seen corresponding path program 1 times [2024-11-10 00:01:07,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:07,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790740362] [2024-11-10 00:01:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:07,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:07,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:07,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790740362] [2024-11-10 00:01:07,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790740362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:07,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:07,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:01:07,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316674218] [2024-11-10 00:01:07,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:07,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:07,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:07,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:07,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:07,884 INFO L87 Difference]: Start difference. First operand 965 states and 1472 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:08,086 INFO L93 Difference]: Finished difference Result 1775 states and 2729 transitions. [2024-11-10 00:01:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:01:08,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-10 00:01:08,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:08,090 INFO L225 Difference]: With dead ends: 1775 [2024-11-10 00:01:08,090 INFO L226 Difference]: Without dead ends: 967 [2024-11-10 00:01:08,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:01:08,093 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 614 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:08,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 779 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-10 00:01:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2024-11-10 00:01:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.5197095435684647) internal successors, (1465), 964 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1465 transitions. [2024-11-10 00:01:08,115 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1465 transitions. Word has length 79 [2024-11-10 00:01:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:08,116 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1465 transitions. [2024-11-10 00:01:08,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1465 transitions. [2024-11-10 00:01:08,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-10 00:01:08,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:08,120 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] [2024-11-10 00:01:08,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:01:08,121 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:08,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:08,121 INFO L85 PathProgramCache]: Analyzing trace with hash 311337370, now seen corresponding path program 1 times [2024-11-10 00:01:08,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:08,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141107036] [2024-11-10 00:01:08,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:08,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:08,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:08,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141107036] [2024-11-10 00:01:08,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141107036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:08,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:08,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:01:08,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973973232] [2024-11-10 00:01:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:08,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:01:08,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:01:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:01:08,276 INFO L87 Difference]: Start difference. First operand 965 states and 1465 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:08,396 INFO L93 Difference]: Finished difference Result 1892 states and 2891 transitions. [2024-11-10 00:01:08,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:01:08,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-10 00:01:08,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:08,401 INFO L225 Difference]: With dead ends: 1892 [2024-11-10 00:01:08,401 INFO L226 Difference]: Without dead ends: 965 [2024-11-10 00:01:08,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:08,403 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 563 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:08,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 113 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-10 00:01:08,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2024-11-10 00:01:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.5051867219917012) internal successors, (1451), 964 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1451 transitions. [2024-11-10 00:01:08,420 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1451 transitions. Word has length 80 [2024-11-10 00:01:08,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:08,420 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1451 transitions. [2024-11-10 00:01:08,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1451 transitions. [2024-11-10 00:01:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 00:01:08,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:08,422 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] [2024-11-10 00:01:08,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:01:08,422 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:08,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:08,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1612703819, now seen corresponding path program 1 times [2024-11-10 00:01:08,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:08,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259268019] [2024-11-10 00:01:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:08,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:08,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:08,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259268019] [2024-11-10 00:01:08,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259268019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:08,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:08,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:01:08,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433730618] [2024-11-10 00:01:08,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:08,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:01:08,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:08,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:01:08,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:01:08,543 INFO L87 Difference]: Start difference. First operand 965 states and 1451 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:08,674 INFO L93 Difference]: Finished difference Result 1880 states and 2849 transitions. [2024-11-10 00:01:08,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:01:08,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 00:01:08,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:08,678 INFO L225 Difference]: With dead ends: 1880 [2024-11-10 00:01:08,678 INFO L226 Difference]: Without dead ends: 965 [2024-11-10 00:01:08,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:08,680 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 523 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:08,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 137 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:08,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-10 00:01:08,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2024-11-10 00:01:08,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4906639004149378) internal successors, (1437), 964 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1437 transitions. [2024-11-10 00:01:08,699 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1437 transitions. Word has length 81 [2024-11-10 00:01:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:08,699 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1437 transitions. [2024-11-10 00:01:08,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,700 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1437 transitions. [2024-11-10 00:01:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 00:01:08,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:08,701 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] [2024-11-10 00:01:08,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 00:01:08,701 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:08,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash 529245078, now seen corresponding path program 1 times [2024-11-10 00:01:08,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:08,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613406480] [2024-11-10 00:01:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:08,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:08,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:08,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613406480] [2024-11-10 00:01:08,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613406480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:08,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:08,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:01:08,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311372614] [2024-11-10 00:01:08,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:08,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:01:08,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:08,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:01:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:01:08,829 INFO L87 Difference]: Start difference. First operand 965 states and 1437 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:08,952 INFO L93 Difference]: Finished difference Result 1876 states and 2817 transitions. [2024-11-10 00:01:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:01:08,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-10 00:01:08,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:08,956 INFO L225 Difference]: With dead ends: 1876 [2024-11-10 00:01:08,956 INFO L226 Difference]: Without dead ends: 965 [2024-11-10 00:01:08,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:08,958 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 505 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:08,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 145 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:08,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-10 00:01:08,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2024-11-10 00:01:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4761410788381744) internal successors, (1423), 964 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1423 transitions. [2024-11-10 00:01:08,978 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1423 transitions. Word has length 82 [2024-11-10 00:01:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:08,978 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1423 transitions. [2024-11-10 00:01:08,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:08,979 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1423 transitions. [2024-11-10 00:01:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 00:01:08,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:08,980 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] [2024-11-10 00:01:08,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 00:01:08,980 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:08,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1587456006, now seen corresponding path program 1 times [2024-11-10 00:01:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:08,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102034051] [2024-11-10 00:01:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:08,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:09,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:09,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102034051] [2024-11-10 00:01:09,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102034051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:09,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:09,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:01:09,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966765878] [2024-11-10 00:01:09,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:09,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:01:09,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:09,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:01:09,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:01:09,092 INFO L87 Difference]: Start difference. First operand 965 states and 1423 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:09,214 INFO L93 Difference]: Finished difference Result 1888 states and 2803 transitions. [2024-11-10 00:01:09,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:01:09,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-10 00:01:09,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:09,217 INFO L225 Difference]: With dead ends: 1888 [2024-11-10 00:01:09,218 INFO L226 Difference]: Without dead ends: 965 [2024-11-10 00:01:09,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:09,220 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 533 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:09,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 121 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-10 00:01:09,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2024-11-10 00:01:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4616182572614107) internal successors, (1409), 964 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:09,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1409 transitions. [2024-11-10 00:01:09,239 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1409 transitions. Word has length 83 [2024-11-10 00:01:09,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:09,239 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1409 transitions. [2024-11-10 00:01:09,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:09,240 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1409 transitions. [2024-11-10 00:01:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-10 00:01:09,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:09,241 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] [2024-11-10 00:01:09,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 00:01:09,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:09,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:09,242 INFO L85 PathProgramCache]: Analyzing trace with hash 846066971, now seen corresponding path program 1 times [2024-11-10 00:01:09,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:09,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207008475] [2024-11-10 00:01:09,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:09,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:09,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:09,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207008475] [2024-11-10 00:01:09,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207008475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:09,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:09,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:01:09,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913250194] [2024-11-10 00:01:09,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:09,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:01:09,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:09,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:01:09,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:01:09,371 INFO L87 Difference]: Start difference. First operand 965 states and 1409 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:09,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:09,489 INFO L93 Difference]: Finished difference Result 1884 states and 2771 transitions. [2024-11-10 00:01:09,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:01:09,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-10 00:01:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:09,493 INFO L225 Difference]: With dead ends: 1884 [2024-11-10 00:01:09,493 INFO L226 Difference]: Without dead ends: 965 [2024-11-10 00:01:09,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:09,496 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 515 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:09,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 129 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-10 00:01:09,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2024-11-10 00:01:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4470954356846473) internal successors, (1395), 964 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1395 transitions. [2024-11-10 00:01:09,519 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1395 transitions. Word has length 84 [2024-11-10 00:01:09,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:09,519 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1395 transitions. [2024-11-10 00:01:09,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:09,520 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1395 transitions. [2024-11-10 00:01:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 00:01:09,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:09,521 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] [2024-11-10 00:01:09,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 00:01:09,522 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:09,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:09,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1183573118, now seen corresponding path program 1 times [2024-11-10 00:01:09,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:09,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830247197] [2024-11-10 00:01:09,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:09,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:09,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:09,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830247197] [2024-11-10 00:01:09,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830247197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:09,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:09,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:01:09,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11349400] [2024-11-10 00:01:09,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:09,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:01:09,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:09,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:01:09,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:01:09,844 INFO L87 Difference]: Start difference. First operand 965 states and 1395 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:10,326 INFO L93 Difference]: Finished difference Result 2644 states and 3841 transitions. [2024-11-10 00:01:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:01:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-10 00:01:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:10,332 INFO L225 Difference]: With dead ends: 2644 [2024-11-10 00:01:10,332 INFO L226 Difference]: Without dead ends: 1830 [2024-11-10 00:01:10,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-10 00:01:10,335 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 755 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:10,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 523 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:01:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-11-10 00:01:10,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 965. [2024-11-10 00:01:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4408713692946058) internal successors, (1389), 964 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1389 transitions. [2024-11-10 00:01:10,367 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1389 transitions. Word has length 85 [2024-11-10 00:01:10,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:10,368 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1389 transitions. [2024-11-10 00:01:10,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1389 transitions. [2024-11-10 00:01:10,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 00:01:10,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:10,369 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] [2024-11-10 00:01:10,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 00:01:10,370 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:10,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:10,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1514356181, now seen corresponding path program 1 times [2024-11-10 00:01:10,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:10,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599649339] [2024-11-10 00:01:10,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:10,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:10,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:10,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:10,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599649339] [2024-11-10 00:01:10,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599649339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:10,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:10,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:01:10,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594227189] [2024-11-10 00:01:10,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:10,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 00:01:10,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:10,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 00:01:10,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:01:10,981 INFO L87 Difference]: Start difference. First operand 965 states and 1389 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:11,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:11,644 INFO L93 Difference]: Finished difference Result 2735 states and 3955 transitions. [2024-11-10 00:01:11,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:01:11,646 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-10 00:01:11,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:11,652 INFO L225 Difference]: With dead ends: 2735 [2024-11-10 00:01:11,653 INFO L226 Difference]: Without dead ends: 1892 [2024-11-10 00:01:11,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-10 00:01:11,655 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 1399 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1399 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:11,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1399 Valid, 787 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 00:01:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2024-11-10 00:01:11,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 971. [2024-11-10 00:01:11,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.4381443298969072) internal successors, (1395), 970 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:11,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1395 transitions. [2024-11-10 00:01:11,682 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1395 transitions. Word has length 85 [2024-11-10 00:01:11,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:11,683 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1395 transitions. [2024-11-10 00:01:11,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1395 transitions. [2024-11-10 00:01:11,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 00:01:11,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:11,684 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] [2024-11-10 00:01:11,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 00:01:11,685 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:11,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:11,685 INFO L85 PathProgramCache]: Analyzing trace with hash -651589442, now seen corresponding path program 1 times [2024-11-10 00:01:11,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:11,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428408931] [2024-11-10 00:01:11,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:11,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:12,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:12,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:12,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428408931] [2024-11-10 00:01:12,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428408931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:12,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:12,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 00:01:12,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558745914] [2024-11-10 00:01:12,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:12,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 00:01:12,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:12,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 00:01:12,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:01:12,168 INFO L87 Difference]: Start difference. First operand 971 states and 1395 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:12,764 INFO L93 Difference]: Finished difference Result 2725 states and 3951 transitions. [2024-11-10 00:01:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:01:12,765 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-10 00:01:12,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:12,772 INFO L225 Difference]: With dead ends: 2725 [2024-11-10 00:01:12,772 INFO L226 Difference]: Without dead ends: 1866 [2024-11-10 00:01:12,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-10 00:01:12,774 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 914 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:12,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 589 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 00:01:12,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2024-11-10 00:01:12,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 965. [2024-11-10 00:01:12,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4367219917012448) internal successors, (1385), 964 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:12,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1385 transitions. [2024-11-10 00:01:12,808 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1385 transitions. Word has length 85 [2024-11-10 00:01:12,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:12,809 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1385 transitions. [2024-11-10 00:01:12,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1385 transitions. [2024-11-10 00:01:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 00:01:12,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:12,810 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] [2024-11-10 00:01:12,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 00:01:12,811 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:12,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:12,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1358568213, now seen corresponding path program 1 times [2024-11-10 00:01:12,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:12,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795924503] [2024-11-10 00:01:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:12,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:13,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:13,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795924503] [2024-11-10 00:01:13,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795924503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:13,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:13,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:01:13,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239741340] [2024-11-10 00:01:13,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:13,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:01:13,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:13,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:01:13,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:01:13,107 INFO L87 Difference]: Start difference. First operand 965 states and 1385 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:13,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:13,432 INFO L93 Difference]: Finished difference Result 2653 states and 3854 transitions. [2024-11-10 00:01:13,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:01:13,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-10 00:01:13,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:13,439 INFO L225 Difference]: With dead ends: 2653 [2024-11-10 00:01:13,439 INFO L226 Difference]: Without dead ends: 1779 [2024-11-10 00:01:13,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:01:13,442 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 426 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:13,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 509 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:13,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2024-11-10 00:01:13,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 965. [2024-11-10 00:01:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4356846473029046) internal successors, (1384), 964 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:13,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1384 transitions. [2024-11-10 00:01:13,467 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1384 transitions. Word has length 85 [2024-11-10 00:01:13,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:13,468 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1384 transitions. [2024-11-10 00:01:13,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:13,468 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1384 transitions. [2024-11-10 00:01:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-10 00:01:13,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:13,469 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] [2024-11-10 00:01:13,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 00:01:13,469 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:13,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:13,470 INFO L85 PathProgramCache]: Analyzing trace with hash -358810168, now seen corresponding path program 1 times [2024-11-10 00:01:13,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:13,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691668766] [2024-11-10 00:01:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:13,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:13,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:13,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691668766] [2024-11-10 00:01:13,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691668766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:13,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:13,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:01:13,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396906299] [2024-11-10 00:01:13,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:13,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 00:01:13,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:13,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 00:01:13,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:01:13,888 INFO L87 Difference]: Start difference. First operand 965 states and 1384 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:14,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:14,533 INFO L93 Difference]: Finished difference Result 2737 states and 3948 transitions. [2024-11-10 00:01:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 00:01:14,534 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-10 00:01:14,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:14,540 INFO L225 Difference]: With dead ends: 2737 [2024-11-10 00:01:14,541 INFO L226 Difference]: Without dead ends: 1904 [2024-11-10 00:01:14,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-10 00:01:14,543 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 813 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:14,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 822 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 00:01:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-11-10 00:01:14,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 987. [2024-11-10 00:01:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 986 states have (on average 1.4300202839756593) internal successors, (1410), 986 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1410 transitions. [2024-11-10 00:01:14,565 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1410 transitions. Word has length 86 [2024-11-10 00:01:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:14,566 INFO L471 AbstractCegarLoop]: Abstraction has 987 states and 1410 transitions. [2024-11-10 00:01:14,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1410 transitions. [2024-11-10 00:01:14,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-10 00:01:14,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:14,567 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] [2024-11-10 00:01:14,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 00:01:14,568 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:14,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:14,568 INFO L85 PathProgramCache]: Analyzing trace with hash -353223586, now seen corresponding path program 1 times [2024-11-10 00:01:14,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:14,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121162343] [2024-11-10 00:01:14,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:14,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:14,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:14,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121162343] [2024-11-10 00:01:14,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121162343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:14,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:14,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:01:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917086072] [2024-11-10 00:01:14,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:14,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:01:14,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:14,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:01:14,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:01:14,957 INFO L87 Difference]: Start difference. First operand 987 states and 1410 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:15,521 INFO L93 Difference]: Finished difference Result 2717 states and 3924 transitions. [2024-11-10 00:01:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:01:15,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-10 00:01:15,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:15,528 INFO L225 Difference]: With dead ends: 2717 [2024-11-10 00:01:15,528 INFO L226 Difference]: Without dead ends: 1878 [2024-11-10 00:01:15,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-10 00:01:15,530 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 768 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:15,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 815 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 00:01:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2024-11-10 00:01:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 965. [2024-11-10 00:01:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4304979253112033) internal successors, (1379), 964 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1379 transitions. [2024-11-10 00:01:15,552 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1379 transitions. Word has length 87 [2024-11-10 00:01:15,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:15,553 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1379 transitions. [2024-11-10 00:01:15,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1379 transitions. [2024-11-10 00:01:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-10 00:01:15,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:15,554 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] [2024-11-10 00:01:15,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 00:01:15,555 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:15,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:15,555 INFO L85 PathProgramCache]: Analyzing trace with hash 688287648, now seen corresponding path program 1 times [2024-11-10 00:01:15,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:15,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315944190] [2024-11-10 00:01:15,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:15,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:15,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:15,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315944190] [2024-11-10 00:01:15,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315944190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:15,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:15,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:01:15,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775365196] [2024-11-10 00:01:15,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:15,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:01:15,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:15,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:01:15,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:01:15,840 INFO L87 Difference]: Start difference. First operand 965 states and 1379 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:16,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:16,419 INFO L93 Difference]: Finished difference Result 2734 states and 3947 transitions. [2024-11-10 00:01:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 00:01:16,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-10 00:01:16,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:16,426 INFO L225 Difference]: With dead ends: 2734 [2024-11-10 00:01:16,427 INFO L226 Difference]: Without dead ends: 1865 [2024-11-10 00:01:16,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-10 00:01:16,429 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 591 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:16,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 853 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 00:01:16,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2024-11-10 00:01:16,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 965. [2024-11-10 00:01:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 964 states have (on average 1.4284232365145229) internal successors, (1377), 964 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1377 transitions. [2024-11-10 00:01:16,456 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1377 transitions. Word has length 87 [2024-11-10 00:01:16,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:16,457 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1377 transitions. [2024-11-10 00:01:16,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:16,457 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1377 transitions. [2024-11-10 00:01:16,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 00:01:16,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:16,458 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] [2024-11-10 00:01:16,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 00:01:16,459 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:16,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:16,460 INFO L85 PathProgramCache]: Analyzing trace with hash 861471690, now seen corresponding path program 1 times [2024-11-10 00:01:16,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:16,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956499577] [2024-11-10 00:01:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:16,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956499577] [2024-11-10 00:01:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956499577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:19,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:19,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2024-11-10 00:01:19,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091511904] [2024-11-10 00:01:19,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:19,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 00:01:19,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:19,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 00:01:19,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1025, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 00:01:19,040 INFO L87 Difference]: Start difference. First operand 965 states and 1377 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:24,464 INFO L93 Difference]: Finished difference Result 5377 states and 7813 transitions. [2024-11-10 00:01:24,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-10 00:01:24,464 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-10 00:01:24,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:24,475 INFO L225 Difference]: With dead ends: 5377 [2024-11-10 00:01:24,475 INFO L226 Difference]: Without dead ends: 5250 [2024-11-10 00:01:24,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=569, Invalid=3337, Unknown=0, NotChecked=0, Total=3906 [2024-11-10 00:01:24,478 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 1709 mSDsluCounter, 10123 mSDsCounter, 0 mSdLazyCounter, 6571 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 10667 SdHoareTripleChecker+Invalid, 6590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:24,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 10667 Invalid, 6590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 6571 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-10 00:01:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2024-11-10 00:01:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 1010. [2024-11-10 00:01:24,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 1009 states have (on average 1.4251734390485629) internal successors, (1438), 1009 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1438 transitions. [2024-11-10 00:01:24,522 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1438 transitions. Word has length 88 [2024-11-10 00:01:24,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:24,523 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1438 transitions. [2024-11-10 00:01:24,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:24,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1438 transitions. [2024-11-10 00:01:24,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 00:01:24,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:24,524 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] [2024-11-10 00:01:24,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 00:01:24,525 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:24,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:24,525 INFO L85 PathProgramCache]: Analyzing trace with hash 881639954, now seen corresponding path program 1 times [2024-11-10 00:01:24,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:24,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147089543] [2024-11-10 00:01:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:24,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:25,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:25,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147089543] [2024-11-10 00:01:25,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147089543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:25,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:25,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:01:25,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692656667] [2024-11-10 00:01:25,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:25,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 00:01:25,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:25,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 00:01:25,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:01:25,130 INFO L87 Difference]: Start difference. First operand 1010 states and 1438 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:25,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:25,699 INFO L93 Difference]: Finished difference Result 2129 states and 3070 transitions. [2024-11-10 00:01:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:01:25,699 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-10 00:01:25,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:25,703 INFO L225 Difference]: With dead ends: 2129 [2024-11-10 00:01:25,703 INFO L226 Difference]: Without dead ends: 1842 [2024-11-10 00:01:25,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-10 00:01:25,705 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 1000 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:25,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1446 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2024-11-10 00:01:25,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 987. [2024-11-10 00:01:25,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 986 states have (on average 1.420892494929006) internal successors, (1401), 986 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1401 transitions. [2024-11-10 00:01:25,724 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1401 transitions. Word has length 88 [2024-11-10 00:01:25,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:25,724 INFO L471 AbstractCegarLoop]: Abstraction has 987 states and 1401 transitions. [2024-11-10 00:01:25,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:25,725 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1401 transitions. [2024-11-10 00:01:25,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 00:01:25,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:25,726 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] [2024-11-10 00:01:25,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 00:01:25,726 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:25,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:25,727 INFO L85 PathProgramCache]: Analyzing trace with hash 123400186, now seen corresponding path program 1 times [2024-11-10 00:01:25,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:25,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49669700] [2024-11-10 00:01:25,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:25,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:26,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:26,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49669700] [2024-11-10 00:01:26,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49669700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:26,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:26,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 00:01:26,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041471953] [2024-11-10 00:01:26,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:26,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 00:01:26,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:26,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 00:01:26,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:01:26,366 INFO L87 Difference]: Start difference. First operand 987 states and 1401 transitions. Second operand has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:27,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:27,026 INFO L93 Difference]: Finished difference Result 3756 states and 5443 transitions. [2024-11-10 00:01:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 00:01:27,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-10 00:01:27,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:27,033 INFO L225 Difference]: With dead ends: 3756 [2024-11-10 00:01:27,033 INFO L226 Difference]: Without dead ends: 3460 [2024-11-10 00:01:27,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-10 00:01:27,035 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 842 mSDsluCounter, 3281 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:27,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 3680 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:01:27,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2024-11-10 00:01:27,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 946. [2024-11-10 00:01:27,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 1.4232804232804233) internal successors, (1345), 945 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1345 transitions. [2024-11-10 00:01:27,061 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1345 transitions. Word has length 88 [2024-11-10 00:01:27,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:27,061 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1345 transitions. [2024-11-10 00:01:27,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.285714285714286) internal successors, (88), 14 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1345 transitions. [2024-11-10 00:01:27,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 00:01:27,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:27,063 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] [2024-11-10 00:01:27,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 00:01:27,064 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:27,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:27,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1557141950, now seen corresponding path program 1 times [2024-11-10 00:01:27,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:27,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366007369] [2024-11-10 00:01:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:27,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:28,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:28,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366007369] [2024-11-10 00:01:28,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366007369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:28,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:28,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-10 00:01:28,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056722879] [2024-11-10 00:01:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:28,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 00:01:28,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 00:01:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-10 00:01:28,122 INFO L87 Difference]: Start difference. First operand 946 states and 1345 transitions. Second operand has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:29,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:29,508 INFO L93 Difference]: Finished difference Result 2863 states and 4144 transitions. [2024-11-10 00:01:29,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 00:01:29,509 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-10 00:01:29,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:29,512 INFO L225 Difference]: With dead ends: 2863 [2024-11-10 00:01:29,512 INFO L226 Difference]: Without dead ends: 2591 [2024-11-10 00:01:29,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2024-11-10 00:01:29,516 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 1172 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:29,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 2918 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 00:01:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2024-11-10 00:01:29,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 946. [2024-11-10 00:01:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 1.4222222222222223) internal successors, (1344), 945 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1344 transitions. [2024-11-10 00:01:29,577 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1344 transitions. Word has length 88 [2024-11-10 00:01:29,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:29,577 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1344 transitions. [2024-11-10 00:01:29,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.176470588235294) internal successors, (88), 17 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1344 transitions. [2024-11-10 00:01:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 00:01:29,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:29,578 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] [2024-11-10 00:01:29,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 00:01:29,579 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:29,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1418667813, now seen corresponding path program 1 times [2024-11-10 00:01:29,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:29,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159756039] [2024-11-10 00:01:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:31,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159756039] [2024-11-10 00:01:31,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159756039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:31,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:31,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-10 00:01:31,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594842556] [2024-11-10 00:01:31,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:31,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 00:01:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:31,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 00:01:31,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2024-11-10 00:01:31,276 INFO L87 Difference]: Start difference. First operand 946 states and 1344 transitions. Second operand has 23 states, 23 states have (on average 3.869565217391304) internal successors, (89), 23 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:33,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:33,709 INFO L93 Difference]: Finished difference Result 3686 states and 5347 transitions. [2024-11-10 00:01:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-10 00:01:33,710 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.869565217391304) internal successors, (89), 23 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-10 00:01:33,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:33,715 INFO L225 Difference]: With dead ends: 3686 [2024-11-10 00:01:33,715 INFO L226 Difference]: Without dead ends: 3434 [2024-11-10 00:01:33,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=262, Invalid=1378, Unknown=0, NotChecked=0, Total=1640 [2024-11-10 00:01:33,718 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 1180 mSDsluCounter, 4145 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:33,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 4449 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-10 00:01:33,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2024-11-10 00:01:33,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 952. [2024-11-10 00:01:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 951 states have (on average 1.4206098843322819) internal successors, (1351), 951 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1351 transitions. [2024-11-10 00:01:33,751 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1351 transitions. Word has length 89 [2024-11-10 00:01:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:33,751 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1351 transitions. [2024-11-10 00:01:33,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.869565217391304) internal successors, (89), 23 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1351 transitions. [2024-11-10 00:01:33,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 00:01:33,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:33,753 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] [2024-11-10 00:01:33,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 00:01:33,753 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:33,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1399121213, now seen corresponding path program 1 times [2024-11-10 00:01:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:33,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198311696] [2024-11-10 00:01:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:33,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:34,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:34,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198311696] [2024-11-10 00:01:34,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198311696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:34,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:34,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-10 00:01:34,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573534541] [2024-11-10 00:01:34,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:34,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 00:01:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 00:01:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:01:34,321 INFO L87 Difference]: Start difference. First operand 952 states and 1351 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:34,955 INFO L93 Difference]: Finished difference Result 3699 states and 5363 transitions. [2024-11-10 00:01:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 00:01:34,955 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-10 00:01:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:34,972 INFO L225 Difference]: With dead ends: 3699 [2024-11-10 00:01:34,972 INFO L226 Difference]: Without dead ends: 3432 [2024-11-10 00:01:34,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-10 00:01:34,974 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 666 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:34,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 3871 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:01:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-10 00:01:35,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 936. [2024-11-10 00:01:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 935 states have (on average 1.4192513368983957) internal successors, (1327), 935 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1327 transitions. [2024-11-10 00:01:35,013 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1327 transitions. Word has length 89 [2024-11-10 00:01:35,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:35,014 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1327 transitions. [2024-11-10 00:01:35,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 14 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1327 transitions. [2024-11-10 00:01:35,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 00:01:35,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:35,016 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] [2024-11-10 00:01:35,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 00:01:35,016 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:35,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:35,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1136499231, now seen corresponding path program 1 times [2024-11-10 00:01:35,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:35,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125020232] [2024-11-10 00:01:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:35,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:35,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:35,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:35,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125020232] [2024-11-10 00:01:35,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125020232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:35,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:35,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 00:01:35,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614074725] [2024-11-10 00:01:35,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:35,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 00:01:35,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:35,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 00:01:35,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:01:35,576 INFO L87 Difference]: Start difference. First operand 936 states and 1327 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:36,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:36,075 INFO L93 Difference]: Finished difference Result 2011 states and 2899 transitions. [2024-11-10 00:01:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:01:36,076 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-10 00:01:36,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:36,078 INFO L225 Difference]: With dead ends: 2011 [2024-11-10 00:01:36,078 INFO L226 Difference]: Without dead ends: 1759 [2024-11-10 00:01:36,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-10 00:01:36,079 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 656 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:36,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1469 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:36,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2024-11-10 00:01:36,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 915. [2024-11-10 00:01:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 914 states have (on average 1.4223194748358863) internal successors, (1300), 914 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:36,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1300 transitions. [2024-11-10 00:01:36,094 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1300 transitions. Word has length 89 [2024-11-10 00:01:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:36,095 INFO L471 AbstractCegarLoop]: Abstraction has 915 states and 1300 transitions. [2024-11-10 00:01:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1300 transitions. [2024-11-10 00:01:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-10 00:01:36,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:36,096 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] [2024-11-10 00:01:36,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 00:01:36,096 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:36,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1718226649, now seen corresponding path program 1 times [2024-11-10 00:01:36,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:36,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417746427] [2024-11-10 00:01:36,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:36,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:36,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:36,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417746427] [2024-11-10 00:01:36,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417746427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:36,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:36,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:01:36,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402555684] [2024-11-10 00:01:36,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:36,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:01:36,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:36,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:01:36,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:36,147 INFO L87 Difference]: Start difference. First operand 915 states and 1300 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:36,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:36,170 INFO L93 Difference]: Finished difference Result 2435 states and 3515 transitions. [2024-11-10 00:01:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:01:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-10 00:01:36,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:36,173 INFO L225 Difference]: With dead ends: 2435 [2024-11-10 00:01:36,173 INFO L226 Difference]: Without dead ends: 1627 [2024-11-10 00:01:36,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:36,175 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 80 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:36,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 434 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:36,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-11-10 00:01:36,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1625. [2024-11-10 00:01:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1625 states, 1624 states have (on average 1.4187192118226601) internal successors, (2304), 1624 states have internal predecessors, (2304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:36,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2304 transitions. [2024-11-10 00:01:36,194 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2304 transitions. Word has length 91 [2024-11-10 00:01:36,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:36,195 INFO L471 AbstractCegarLoop]: Abstraction has 1625 states and 2304 transitions. [2024-11-10 00:01:36,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:36,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2304 transitions. [2024-11-10 00:01:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-10 00:01:36,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:36,196 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] [2024-11-10 00:01:36,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 00:01:36,196 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:36,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1560313714, now seen corresponding path program 1 times [2024-11-10 00:01:36,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:36,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961053200] [2024-11-10 00:01:36,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:36,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:36,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:36,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:36,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961053200] [2024-11-10 00:01:36,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961053200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:36,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:36,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-10 00:01:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000949328] [2024-11-10 00:01:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:36,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 00:01:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:36,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 00:01:36,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:01:36,659 INFO L87 Difference]: Start difference. First operand 1625 states and 2304 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:36,958 INFO L93 Difference]: Finished difference Result 3612 states and 5168 transitions. [2024-11-10 00:01:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 00:01:36,959 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-10 00:01:36,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:36,963 INFO L225 Difference]: With dead ends: 3612 [2024-11-10 00:01:36,963 INFO L226 Difference]: Without dead ends: 3123 [2024-11-10 00:01:36,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-10 00:01:36,964 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 574 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:36,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1384 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:01:36,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2024-11-10 00:01:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 1604. [2024-11-10 00:01:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1603 states have (on average 1.4217092950717405) internal successors, (2279), 1603 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2279 transitions. [2024-11-10 00:01:37,004 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2279 transitions. Word has length 91 [2024-11-10 00:01:37,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:37,004 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2279 transitions. [2024-11-10 00:01:37,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2279 transitions. [2024-11-10 00:01:37,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:01:37,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:37,006 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] [2024-11-10 00:01:37,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 00:01:37,006 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:37,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:37,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1395388726, now seen corresponding path program 1 times [2024-11-10 00:01:37,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:37,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623013593] [2024-11-10 00:01:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:37,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:37,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:37,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623013593] [2024-11-10 00:01:37,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623013593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:37,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:37,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:01:37,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949916608] [2024-11-10 00:01:37,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:37,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 00:01:37,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:37,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 00:01:37,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 00:01:37,141 INFO L87 Difference]: Start difference. First operand 1604 states and 2279 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:37,172 INFO L93 Difference]: Finished difference Result 3736 states and 5356 transitions. [2024-11-10 00:01:37,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:01:37,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-10 00:01:37,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:37,175 INFO L225 Difference]: With dead ends: 3736 [2024-11-10 00:01:37,175 INFO L226 Difference]: Without dead ends: 2218 [2024-11-10 00:01:37,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 00:01:37,178 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 90 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:37,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 512 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:37,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2024-11-10 00:01:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2216. [2024-11-10 00:01:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2216 states, 2215 states have (on average 1.4221218961625282) internal successors, (3150), 2215 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 3150 transitions. [2024-11-10 00:01:37,208 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 3150 transitions. Word has length 92 [2024-11-10 00:01:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:37,209 INFO L471 AbstractCegarLoop]: Abstraction has 2216 states and 3150 transitions. [2024-11-10 00:01:37,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 3150 transitions. [2024-11-10 00:01:37,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:01:37,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:37,210 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] [2024-11-10 00:01:37,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-10 00:01:37,210 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:37,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:37,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1133921613, now seen corresponding path program 1 times [2024-11-10 00:01:37,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:37,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136471715] [2024-11-10 00:01:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:37,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:37,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:37,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136471715] [2024-11-10 00:01:37,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136471715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:37,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:37,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:01:37,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586723905] [2024-11-10 00:01:37,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:37,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:01:37,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:37,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:01:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:01:37,428 INFO L87 Difference]: Start difference. First operand 2216 states and 3150 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:37,456 INFO L93 Difference]: Finished difference Result 2242 states and 3181 transitions. [2024-11-10 00:01:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:01:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-10 00:01:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:37,459 INFO L225 Difference]: With dead ends: 2242 [2024-11-10 00:01:37,459 INFO L226 Difference]: Without dead ends: 2240 [2024-11-10 00:01:37,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:01:37,461 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:37,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 713 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:37,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2024-11-10 00:01:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2240. [2024-11-10 00:01:37,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2239 states have (on average 1.41179097811523) internal successors, (3161), 2239 states have internal predecessors, (3161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3161 transitions. [2024-11-10 00:01:37,488 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 3161 transitions. Word has length 92 [2024-11-10 00:01:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:37,488 INFO L471 AbstractCegarLoop]: Abstraction has 2240 states and 3161 transitions. [2024-11-10 00:01:37,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 3161 transitions. [2024-11-10 00:01:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-10 00:01:37,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:37,490 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:37,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 00:01:37,490 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:37,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:37,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1763498289, now seen corresponding path program 1 times [2024-11-10 00:01:37,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:37,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149233478] [2024-11-10 00:01:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:37,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:37,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:37,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149233478] [2024-11-10 00:01:37,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149233478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:37,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:37,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:01:37,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440708697] [2024-11-10 00:01:37,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:37,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:37,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:37,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:37,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:37,621 INFO L87 Difference]: Start difference. First operand 2240 states and 3161 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:37,843 INFO L93 Difference]: Finished difference Result 6071 states and 8571 transitions. [2024-11-10 00:01:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:01:37,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-10 00:01:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:37,849 INFO L225 Difference]: With dead ends: 6071 [2024-11-10 00:01:37,849 INFO L226 Difference]: Without dead ends: 4529 [2024-11-10 00:01:37,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-10 00:01:37,852 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 850 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:37,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 314 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:37,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2024-11-10 00:01:37,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 2751. [2024-11-10 00:01:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2750 states have (on average 1.3767272727272728) internal successors, (3786), 2750 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 3786 transitions. [2024-11-10 00:01:37,896 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 3786 transitions. Word has length 121 [2024-11-10 00:01:37,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:37,896 INFO L471 AbstractCegarLoop]: Abstraction has 2751 states and 3786 transitions. [2024-11-10 00:01:37,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:37,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 3786 transitions. [2024-11-10 00:01:37,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-10 00:01:37,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:37,899 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:37,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-10 00:01:37,899 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:37,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:37,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1624974801, now seen corresponding path program 1 times [2024-11-10 00:01:37,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:37,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163113752] [2024-11-10 00:01:37,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:37,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:38,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:38,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163113752] [2024-11-10 00:01:38,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163113752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:38,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:38,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:01:38,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731605807] [2024-11-10 00:01:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:38,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:38,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:38,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:38,041 INFO L87 Difference]: Start difference. First operand 2751 states and 3786 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:38,317 INFO L93 Difference]: Finished difference Result 8793 states and 12303 transitions. [2024-11-10 00:01:38,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:01:38,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-10 00:01:38,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:38,326 INFO L225 Difference]: With dead ends: 8793 [2024-11-10 00:01:38,326 INFO L226 Difference]: Without dead ends: 6128 [2024-11-10 00:01:38,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:01:38,332 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 1116 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:38,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 353 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:38,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6128 states. [2024-11-10 00:01:38,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6128 to 4266. [2024-11-10 00:01:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4266 states, 4265 states have (on average 1.377960140679953) internal successors, (5877), 4265 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:38,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 5877 transitions. [2024-11-10 00:01:38,399 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 5877 transitions. Word has length 121 [2024-11-10 00:01:38,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:38,400 INFO L471 AbstractCegarLoop]: Abstraction has 4266 states and 5877 transitions. [2024-11-10 00:01:38,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:38,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 5877 transitions. [2024-11-10 00:01:38,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-10 00:01:38,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:38,401 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:38,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-10 00:01:38,402 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:38,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:38,402 INFO L85 PathProgramCache]: Analyzing trace with hash -733723663, now seen corresponding path program 1 times [2024-11-10 00:01:38,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:38,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568219605] [2024-11-10 00:01:38,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:38,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:38,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568219605] [2024-11-10 00:01:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568219605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:01:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72261723] [2024-11-10 00:01:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:38,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:38,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:38,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:38,549 INFO L87 Difference]: Start difference. First operand 4266 states and 5877 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:38,802 INFO L93 Difference]: Finished difference Result 15884 states and 22199 transitions. [2024-11-10 00:01:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:01:38,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-10 00:01:38,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:38,818 INFO L225 Difference]: With dead ends: 15884 [2024-11-10 00:01:38,818 INFO L226 Difference]: Without dead ends: 11725 [2024-11-10 00:01:38,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:01:38,830 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 1031 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:38,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 351 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11725 states. [2024-11-10 00:01:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11725 to 8923. [2024-11-10 00:01:39,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8923 states, 8922 states have (on average 1.3827617126204887) internal successors, (12337), 8922 states have internal predecessors, (12337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8923 states to 8923 states and 12337 transitions. [2024-11-10 00:01:39,036 INFO L78 Accepts]: Start accepts. Automaton has 8923 states and 12337 transitions. Word has length 121 [2024-11-10 00:01:39,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:39,036 INFO L471 AbstractCegarLoop]: Abstraction has 8923 states and 12337 transitions. [2024-11-10 00:01:39,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:39,037 INFO L276 IsEmpty]: Start isEmpty. Operand 8923 states and 12337 transitions. [2024-11-10 00:01:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-10 00:01:39,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:39,040 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:39,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-10 00:01:39,040 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:39,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1706757297, now seen corresponding path program 1 times [2024-11-10 00:01:39,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:39,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440369973] [2024-11-10 00:01:39,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:39,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:39,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:39,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440369973] [2024-11-10 00:01:39,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440369973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:39,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:39,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:01:39,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598005977] [2024-11-10 00:01:39,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:39,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:39,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:39,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:39,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:39,216 INFO L87 Difference]: Start difference. First operand 8923 states and 12337 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:39,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:39,502 INFO L93 Difference]: Finished difference Result 31155 states and 43379 transitions. [2024-11-10 00:01:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:01:39,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-10 00:01:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:39,530 INFO L225 Difference]: With dead ends: 31155 [2024-11-10 00:01:39,530 INFO L226 Difference]: Without dead ends: 22339 [2024-11-10 00:01:39,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:01:39,545 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 946 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:39,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 349 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22339 states. [2024-11-10 00:01:39,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22339 to 18737. [2024-11-10 00:01:39,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18737 states, 18736 states have (on average 1.3854077711357813) internal successors, (25957), 18736 states have internal predecessors, (25957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18737 states to 18737 states and 25957 transitions. [2024-11-10 00:01:39,814 INFO L78 Accepts]: Start accepts. Automaton has 18737 states and 25957 transitions. Word has length 121 [2024-11-10 00:01:39,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:39,815 INFO L471 AbstractCegarLoop]: Abstraction has 18737 states and 25957 transitions. [2024-11-10 00:01:39,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:39,815 INFO L276 IsEmpty]: Start isEmpty. Operand 18737 states and 25957 transitions. [2024-11-10 00:01:39,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-10 00:01:39,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:39,876 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:39,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-10 00:01:39,876 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:39,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:39,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2131805454, now seen corresponding path program 1 times [2024-11-10 00:01:39,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:39,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367999645] [2024-11-10 00:01:39,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:39,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:40,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:40,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367999645] [2024-11-10 00:01:40,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367999645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:40,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:40,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:01:40,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111651266] [2024-11-10 00:01:40,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:40,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:01:40,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:40,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:01:40,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:01:40,014 INFO L87 Difference]: Start difference. First operand 18737 states and 25957 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:40,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:40,395 INFO L93 Difference]: Finished difference Result 60397 states and 84039 transitions. [2024-11-10 00:01:40,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:01:40,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-10 00:01:40,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:40,459 INFO L225 Difference]: With dead ends: 60397 [2024-11-10 00:01:40,460 INFO L226 Difference]: Without dead ends: 41767 [2024-11-10 00:01:40,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-10 00:01:40,491 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 861 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:40,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 347 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:01:40,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41767 states. [2024-11-10 00:01:41,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41767 to 39365. [2024-11-10 00:01:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39365 states, 39364 states have (on average 1.3869779493953867) internal successors, (54597), 39364 states have internal predecessors, (54597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:41,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39365 states to 39365 states and 54597 transitions. [2024-11-10 00:01:41,161 INFO L78 Accepts]: Start accepts. Automaton has 39365 states and 54597 transitions. Word has length 122 [2024-11-10 00:01:41,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:41,162 INFO L471 AbstractCegarLoop]: Abstraction has 39365 states and 54597 transitions. [2024-11-10 00:01:41,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:41,162 INFO L276 IsEmpty]: Start isEmpty. Operand 39365 states and 54597 transitions. [2024-11-10 00:01:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-10 00:01:41,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:41,165 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:41,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-10 00:01:41,166 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:41,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash -611207184, now seen corresponding path program 1 times [2024-11-10 00:01:41,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:41,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2233863] [2024-11-10 00:01:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:41,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:41,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:41,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2233863] [2024-11-10 00:01:41,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2233863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:41,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:41,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:01:41,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812898395] [2024-11-10 00:01:41,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:41,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:01:41,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:41,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:01:41,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:41,299 INFO L87 Difference]: Start difference. First operand 39365 states and 54597 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:41,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:41,670 INFO L93 Difference]: Finished difference Result 70137 states and 97239 transitions. [2024-11-10 00:01:41,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:01:41,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-10 00:01:41,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:41,729 INFO L225 Difference]: With dead ends: 70137 [2024-11-10 00:01:41,730 INFO L226 Difference]: Without dead ends: 38119 [2024-11-10 00:01:41,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:41,757 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 82 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:41,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 387 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38119 states. [2024-11-10 00:01:42,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38119 to 35781. [2024-11-10 00:01:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35781 states, 35780 states have (on average 1.3850195640022358) internal successors, (49556), 35780 states have internal predecessors, (49556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35781 states to 35781 states and 49556 transitions. [2024-11-10 00:01:42,429 INFO L78 Accepts]: Start accepts. Automaton has 35781 states and 49556 transitions. Word has length 123 [2024-11-10 00:01:42,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:42,430 INFO L471 AbstractCegarLoop]: Abstraction has 35781 states and 49556 transitions. [2024-11-10 00:01:42,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 35781 states and 49556 transitions. [2024-11-10 00:01:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-10 00:01:42,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:42,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:42,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-10 00:01:42,442 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:42,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:42,443 INFO L85 PathProgramCache]: Analyzing trace with hash 723145238, now seen corresponding path program 1 times [2024-11-10 00:01:42,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:42,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224698601] [2024-11-10 00:01:42,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:42,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 00:01:42,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:42,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224698601] [2024-11-10 00:01:42,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224698601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:42,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:42,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:01:42,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078867055] [2024-11-10 00:01:42,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:42,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:01:42,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:42,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:01:42,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:42,774 INFO L87 Difference]: Start difference. First operand 35781 states and 49556 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:42,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:42,958 INFO L93 Difference]: Finished difference Result 69057 states and 95398 transitions. [2024-11-10 00:01:42,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:01:42,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-10 00:01:42,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:43,011 INFO L225 Difference]: With dead ends: 69057 [2024-11-10 00:01:43,011 INFO L226 Difference]: Without dead ends: 33383 [2024-11-10 00:01:43,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:43,048 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 68 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:43,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 383 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33383 states. [2024-11-10 00:01:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33383 to 25363. [2024-11-10 00:01:43,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25363 states, 25362 states have (on average 1.3640880056777858) internal successors, (34596), 25362 states have internal predecessors, (34596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25363 states to 25363 states and 34596 transitions. [2024-11-10 00:01:43,562 INFO L78 Accepts]: Start accepts. Automaton has 25363 states and 34596 transitions. Word has length 154 [2024-11-10 00:01:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:43,563 INFO L471 AbstractCegarLoop]: Abstraction has 25363 states and 34596 transitions. [2024-11-10 00:01:43,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 25363 states and 34596 transitions. [2024-11-10 00:01:43,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-10 00:01:43,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:43,568 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:43,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-10 00:01:43,569 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:43,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1715453125, now seen corresponding path program 1 times [2024-11-10 00:01:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:43,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088323816] [2024-11-10 00:01:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-10 00:01:43,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:43,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088323816] [2024-11-10 00:01:43,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088323816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:43,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:43,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:01:43,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275283144] [2024-11-10 00:01:43,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:43,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:01:43,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:43,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:01:43,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:43,857 INFO L87 Difference]: Start difference. First operand 25363 states and 34596 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:43,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:43,986 INFO L93 Difference]: Finished difference Result 56627 states and 77122 transitions. [2024-11-10 00:01:43,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:01:43,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2024-11-10 00:01:43,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:44,027 INFO L225 Difference]: With dead ends: 56627 [2024-11-10 00:01:44,027 INFO L226 Difference]: Without dead ends: 31368 [2024-11-10 00:01:44,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:44,054 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 75 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:44,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 382 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31368 states. [2024-11-10 00:01:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31368 to 30336. [2024-11-10 00:01:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30336 states, 30335 states have (on average 1.354738750618098) internal successors, (41096), 30335 states have internal predecessors, (41096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30336 states to 30336 states and 41096 transitions. [2024-11-10 00:01:44,531 INFO L78 Accepts]: Start accepts. Automaton has 30336 states and 41096 transitions. Word has length 154 [2024-11-10 00:01:44,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:44,531 INFO L471 AbstractCegarLoop]: Abstraction has 30336 states and 41096 transitions. [2024-11-10 00:01:44,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 30336 states and 41096 transitions. [2024-11-10 00:01:44,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-10 00:01:44,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:44,539 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:44,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-10 00:01:44,540 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:44,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:44,540 INFO L85 PathProgramCache]: Analyzing trace with hash 804760208, now seen corresponding path program 1 times [2024-11-10 00:01:44,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:44,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378037287] [2024-11-10 00:01:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:44,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 00:01:44,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:44,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378037287] [2024-11-10 00:01:44,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378037287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:44,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:44,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:01:44,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398041404] [2024-11-10 00:01:44,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:44,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:01:44,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:44,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:01:44,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:44,811 INFO L87 Difference]: Start difference. First operand 30336 states and 41096 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:44,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:44,926 INFO L93 Difference]: Finished difference Result 58476 states and 78890 transitions. [2024-11-10 00:01:44,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:01:44,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-11-10 00:01:44,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:44,956 INFO L225 Difference]: With dead ends: 58476 [2024-11-10 00:01:44,956 INFO L226 Difference]: Without dead ends: 28238 [2024-11-10 00:01:44,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:44,978 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 61 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:44,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 390 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:44,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28238 states. [2024-11-10 00:01:45,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28238 to 27636. [2024-11-10 00:01:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27636 states, 27635 states have (on average 1.335118509136964) internal successors, (36896), 27635 states have internal predecessors, (36896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27636 states to 27636 states and 36896 transitions. [2024-11-10 00:01:45,330 INFO L78 Accepts]: Start accepts. Automaton has 27636 states and 36896 transitions. Word has length 155 [2024-11-10 00:01:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:45,330 INFO L471 AbstractCegarLoop]: Abstraction has 27636 states and 36896 transitions. [2024-11-10 00:01:45,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:45,330 INFO L276 IsEmpty]: Start isEmpty. Operand 27636 states and 36896 transitions. [2024-11-10 00:01:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-10 00:01:45,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:45,334 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:45,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-10 00:01:45,334 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:45,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1657985313, now seen corresponding path program 1 times [2024-11-10 00:01:45,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:45,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652793074] [2024-11-10 00:01:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:45,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 00:01:45,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:45,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652793074] [2024-11-10 00:01:45,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652793074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:01:45,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:01:45,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:01:45,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092796593] [2024-11-10 00:01:45,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:01:45,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:01:45,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:45,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:01:45,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:45,466 INFO L87 Difference]: Start difference. First operand 27636 states and 36896 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:01:45,718 INFO L93 Difference]: Finished difference Result 72336 states and 96674 transitions. [2024-11-10 00:01:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:01:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-11-10 00:01:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:01:45,766 INFO L225 Difference]: With dead ends: 72336 [2024-11-10 00:01:45,766 INFO L226 Difference]: Without dead ends: 44798 [2024-11-10 00:01:45,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:01:45,790 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 52 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:01:45,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 389 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:01:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44798 states. [2024-11-10 00:01:46,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44798 to 41996. [2024-11-10 00:01:46,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41996 states, 41995 states have (on average 1.3306345993570663) internal successors, (55880), 41995 states have internal predecessors, (55880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41996 states to 41996 states and 55880 transitions. [2024-11-10 00:01:46,383 INFO L78 Accepts]: Start accepts. Automaton has 41996 states and 55880 transitions. Word has length 156 [2024-11-10 00:01:46,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:01:46,384 INFO L471 AbstractCegarLoop]: Abstraction has 41996 states and 55880 transitions. [2024-11-10 00:01:46,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:01:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand 41996 states and 55880 transitions. [2024-11-10 00:01:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-10 00:01:46,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:01:46,390 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:01:46,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-10 00:01:46,390 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:01:46,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:01:46,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2121054013, now seen corresponding path program 1 times [2024-11-10 00:01:46,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:01:46,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247449556] [2024-11-10 00:01:46,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:46,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:01:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:47,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:01:47,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247449556] [2024-11-10 00:01:47,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247449556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:01:47,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661130340] [2024-11-10 00:01:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:01:47,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:01:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:01:47,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:01:47,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 00:01:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:01:47,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 00:01:47,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:01:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:48,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:01:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:01:50,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661130340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:01:50,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:01:50,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 36 [2024-11-10 00:01:50,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236610559] [2024-11-10 00:01:50,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:01:50,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-10 00:01:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:01:50,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-10 00:01:50,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1209, Unknown=0, NotChecked=0, Total=1332 [2024-11-10 00:01:50,824 INFO L87 Difference]: Start difference. First operand 41996 states and 55880 transitions. Second operand has 37 states, 37 states have (on average 12.162162162162161) internal successors, (450), 36 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)