./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-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 d9dc4c1afb888b23c0ebc469c8090d62842d0a0c5570d5e56681453b5bd49afb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:37:14,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:37:14,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:37:14,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:37:14,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:37:14,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:37:14,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:37:14,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:37:14,759 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:37:14,760 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:37:14,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:37:14,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:37:14,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:37:14,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:37:14,764 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:37:14,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:37:14,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:37:14,765 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:37:14,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:37:14,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:37:14,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:37:14,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:37:14,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:37:14,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:37:14,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:37:14,770 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:37:14,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:37:14,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:37:14,771 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:37:14,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:37:14,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:37:14,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:37:14,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:37:14,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:37:14,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:37:14,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:37:14,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:37:14,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:37:14,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:37:14,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:37:14,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:37:14,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:37:14,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9dc4c1afb888b23c0ebc469c8090d62842d0a0c5570d5e56681453b5bd49afb [2024-11-16 08:37:15,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:37:15,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:37:15,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:37:15,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:37:15,043 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:37:15,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2024-11-16 08:37:16,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:37:16,811 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:37:16,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2024-11-16 08:37:16,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a51e8830/7ad076ad379644768e60c008a2c0854c/FLAG2c92faf31 [2024-11-16 08:37:16,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a51e8830/7ad076ad379644768e60c008a2c0854c [2024-11-16 08:37:16,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:37:16,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:37:16,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:37:16,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:37:16,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:37:16,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:16" (1/1) ... [2024-11-16 08:37:16,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a351709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:16, skipping insertion in model container [2024-11-16 08:37:16,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:37:16" (1/1) ... [2024-11-16 08:37:16,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:37:17,277 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-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c[15364,15377] [2024-11-16 08:37:17,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:37:17,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:37:17,630 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-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c[15364,15377] [2024-11-16 08:37:17,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:37:17,738 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:37:17,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17 WrapperNode [2024-11-16 08:37:17,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:37:17,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:37:17,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:37:17,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:37:17,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,836 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1712 [2024-11-16 08:37:17,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:37:17,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:37:17,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:37:17,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:37:17,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,859 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,902 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:37:17,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,929 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:37:17,948 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:37:17,949 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:37:17,949 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:37:17,950 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (1/1) ... [2024-11-16 08:37:17,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:37:17,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:37:17,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:37:17,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:37:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:37:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:37:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:37:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:37:18,185 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:37:18,187 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:37:19,408 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1951: havoc main_~node6____CPAchecker_TMP_0~2#1; [2024-11-16 08:37:19,408 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2151: havoc main_~node4____CPAchecker_TMP_1~2#1; [2024-11-16 08:37:19,408 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2812: havoc main_~node2____CPAchecker_TMP_0~3#1; [2024-11-16 08:37:19,408 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L567: 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; [2024-11-16 08:37:19,408 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1030: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,409 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1692: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:19,409 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node2__m2~1#1; [2024-11-16 08:37:19,409 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2554: havoc main_~node5____CPAchecker_TMP_0~3#1; [2024-11-16 08:37:19,409 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L772: havoc main_~node4__m4~3#1; [2024-11-16 08:37:19,409 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: havoc main_~node3____CPAchecker_TMP_1~3#1; [2024-11-16 08:37:19,409 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L640: havoc main_~node5__m5~2#1; [2024-11-16 08:37:19,410 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L310: havoc main_~node3__m3~0#1; [2024-11-16 08:37:19,410 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1434: havoc main_~node6____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:19,411 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1634: havoc main_~node4____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:19,411 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L511: havoc main_~node6__m6~1#1; [2024-11-16 08:37:19,411 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2295: havoc main_~node2____CPAchecker_TMP_0~2#1; [2024-11-16 08:37:19,411 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1174: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,411 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2496: havoc main_~node6____CPAchecker_TMP_1~3#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2037: havoc main_~node5____CPAchecker_TMP_0~2#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: havoc main_~node1__m1~3#1;havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2237: havoc main_~node3____CPAchecker_TMP_1~2#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L916: havoc main_~node6____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2898: havoc main_~node1____CPAchecker_TMP_0~3#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L586: havoc main_~node2__m2~2#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1116: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1778: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L457: havoc main_~node3__m3~1#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1979: havoc main_~node6____CPAchecker_TMP_1~2#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L790: havoc main_~node5__m5~3#1; [2024-11-16 08:37:19,412 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L658: havoc main_~node6__m6~2#1; [2024-11-16 08:37:19,413 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2640: havoc main_~node4____CPAchecker_TMP_0~3#1; [2024-11-16 08:37:19,413 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L328: havoc main_~node4__m4~0#1; [2024-11-16 08:37:19,413 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2840: havoc main_~node2____CPAchecker_TMP_1~3#1; [2024-11-16 08:37:19,413 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1520: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:19,413 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L860: havoc main_~main____CPAchecker_TMP_0~3#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2024-11-16 08:37:19,413 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1720: havoc main_~node3____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:19,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2381: havoc main_~node1____CPAchecker_TMP_0~2#1; [2024-11-16 08:37:19,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1260: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2582: havoc main_~node5____CPAchecker_TMP_1~3#1; [2024-11-16 08:37:19,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1462: havoc main_~node6____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:19,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L273: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2123: havoc main_~node4____CPAchecker_TMP_0~2#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: havoc main_~node2__m2~3#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L604: havoc main_~node3__m3~2#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2323: havoc main_~node2____CPAchecker_TMP_1~2#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L475: havoc main_~node4__m4~1#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1202: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,415 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1864: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:19,416 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L808: havoc main_~node6__m6~3#1; [2024-11-16 08:37:19,416 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L346: havoc main_~node5__m5~0#1; [2024-11-16 08:37:19,416 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2065: havoc main_~node5____CPAchecker_TMP_1~2#1; [2024-11-16 08:37:19,416 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2726: havoc main_~node3____CPAchecker_TMP_0~3#1; [2024-11-16 08:37:19,416 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L944: havoc main_~node6____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,416 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1606: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1806: havoc main_~node2____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2468: havoc main_~node6____CPAchecker_TMP_0~3#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L420: 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; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1346: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2668: havoc main_~node4____CPAchecker_TMP_1~3#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L754: havoc main_~node3__m3~3#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L622: havoc main_~node4__m4~2#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L292: havoc main_~node2__m2~0#1; [2024-11-16 08:37:19,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1548: havoc main_~node5____CPAchecker_TMP_1~1#1; [2024-11-16 08:37:19,418 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2209: havoc main_~node3____CPAchecker_TMP_0~2#1; [2024-11-16 08:37:19,418 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L493: havoc main_~node5__m5~1#1; [2024-11-16 08:37:19,418 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1088: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-16 08:37:19,418 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1288: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-16 08:37:19,418 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L364: havoc main_~node6__m6~0#1; [2024-11-16 08:37:19,524 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2024-11-16 08:37:19,525 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:37:19,561 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:37:19,562 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:37:19,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:37:19 BoogieIcfgContainer [2024-11-16 08:37:19,563 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:37:19,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:37:19,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:37:19,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:37:19,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:37:16" (1/3) ... [2024-11-16 08:37:19,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196610d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:37:19, skipping insertion in model container [2024-11-16 08:37:19,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:37:17" (2/3) ... [2024-11-16 08:37:19,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6196610d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:37:19, skipping insertion in model container [2024-11-16 08:37:19,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:37:19" (3/3) ... [2024-11-16 08:37:19,571 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2024-11-16 08:37:19,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:37:19,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:37:19,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:37:19,686 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;@a772a6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:37:19,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:37:19,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 556 states, 554 states have (on average 1.568592057761733) internal successors, (869), 555 states have internal predecessors, (869), 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) [2024-11-16 08:37:19,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:37:19,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:19,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:19,716 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:19,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash -849499156, now seen corresponding path program 1 times [2024-11-16 08:37:19,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:19,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876145094] [2024-11-16 08:37:19,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:19,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:20,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:20,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:20,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876145094] [2024-11-16 08:37:20,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876145094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:20,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:20,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:37:20,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826523667] [2024-11-16 08:37:20,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:20,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:37:20,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:20,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:37:20,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:37:20,380 INFO L87 Difference]: Start difference. First operand has 556 states, 554 states have (on average 1.568592057761733) internal successors, (869), 555 states have internal predecessors, (869), 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 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2024-11-16 08:37:20,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:20,578 INFO L93 Difference]: Finished difference Result 1069 states and 1654 transitions. [2024-11-16 08:37:20,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 08:37:20,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 119 [2024-11-16 08:37:20,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:20,595 INFO L225 Difference]: With dead ends: 1069 [2024-11-16 08:37:20,596 INFO L226 Difference]: Without dead ends: 552 [2024-11-16 08:37:20,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:37:20,603 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 222 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:20,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 2350 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:37:20,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-16 08:37:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-16 08:37:20,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 551 states have (on average 1.4809437386569873) internal successors, (816), 551 states have internal predecessors, (816), 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) [2024-11-16 08:37:20,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 816 transitions. [2024-11-16 08:37:20,669 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 816 transitions. Word has length 119 [2024-11-16 08:37:20,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:20,669 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 816 transitions. [2024-11-16 08:37:20,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2024-11-16 08:37:20,670 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 816 transitions. [2024-11-16 08:37:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-16 08:37:20,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:20,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:20,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:37:20,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:20,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1979609829, now seen corresponding path program 1 times [2024-11-16 08:37:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893628267] [2024-11-16 08:37:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:20,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:21,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893628267] [2024-11-16 08:37:21,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893628267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:21,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211014018] [2024-11-16 08:37:21,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:21,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:21,007 INFO L87 Difference]: Start difference. First operand 552 states and 816 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-16 08:37:21,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:21,073 INFO L93 Difference]: Finished difference Result 1270 states and 1938 transitions. [2024-11-16 08:37:21,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:21,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 199 [2024-11-16 08:37:21,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:21,080 INFO L225 Difference]: With dead ends: 1270 [2024-11-16 08:37:21,080 INFO L226 Difference]: Without dead ends: 830 [2024-11-16 08:37:21,082 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 [2024-11-16 08:37:21,085 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 524 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:21,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1430 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:21,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-16 08:37:21,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 828. [2024-11-16 08:37:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 827 states have (on average 1.505441354292624) internal successors, (1245), 827 states have internal predecessors, (1245), 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) [2024-11-16 08:37:21,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1245 transitions. [2024-11-16 08:37:21,113 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1245 transitions. Word has length 199 [2024-11-16 08:37:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:21,114 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1245 transitions. [2024-11-16 08:37:21,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-16 08:37:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1245 transitions. [2024-11-16 08:37:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-16 08:37:21,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:21,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:21,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:37:21,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:21,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:21,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2023538941, now seen corresponding path program 1 times [2024-11-16 08:37:21,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:21,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667637634] [2024-11-16 08:37:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:21,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:21,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667637634] [2024-11-16 08:37:21,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667637634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:21,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847476931] [2024-11-16 08:37:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:21,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:21,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:21,318 INFO L87 Difference]: Start difference. First operand 828 states and 1245 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-16 08:37:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:21,394 INFO L93 Difference]: Finished difference Result 2019 states and 3103 transitions. [2024-11-16 08:37:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:21,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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 201 [2024-11-16 08:37:21,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:21,401 INFO L225 Difference]: With dead ends: 2019 [2024-11-16 08:37:21,401 INFO L226 Difference]: Without dead ends: 1316 [2024-11-16 08:37:21,403 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 [2024-11-16 08:37:21,405 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 507 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:21,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 1548 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:21,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2024-11-16 08:37:21,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1314. [2024-11-16 08:37:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1313 states have (on average 1.5217060167555216) internal successors, (1998), 1313 states have internal predecessors, (1998), 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) [2024-11-16 08:37:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1998 transitions. [2024-11-16 08:37:21,444 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1998 transitions. Word has length 201 [2024-11-16 08:37:21,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:21,445 INFO L471 AbstractCegarLoop]: Abstraction has 1314 states and 1998 transitions. [2024-11-16 08:37:21,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-16 08:37:21,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1998 transitions. [2024-11-16 08:37:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-16 08:37:21,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:21,454 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:21,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:37:21,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:21,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:21,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1007182999, now seen corresponding path program 1 times [2024-11-16 08:37:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:21,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37309998] [2024-11-16 08:37:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37309998] [2024-11-16 08:37:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37309998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:21,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120228004] [2024-11-16 08:37:21,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:21,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:21,608 INFO L87 Difference]: Start difference. First operand 1314 states and 1998 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-11-16 08:37:21,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:21,668 INFO L93 Difference]: Finished difference Result 3326 states and 5126 transitions. [2024-11-16 08:37:21,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:21,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 203 [2024-11-16 08:37:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:21,680 INFO L225 Difference]: With dead ends: 3326 [2024-11-16 08:37:21,681 INFO L226 Difference]: Without dead ends: 2150 [2024-11-16 08:37:21,683 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 [2024-11-16 08:37:21,684 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 492 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:21,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 1356 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:21,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-16 08:37:21,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2148. [2024-11-16 08:37:21,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 2147 states have (on average 1.529110386585934) internal successors, (3283), 2147 states have internal predecessors, (3283), 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) [2024-11-16 08:37:21,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 3283 transitions. [2024-11-16 08:37:21,734 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 3283 transitions. Word has length 203 [2024-11-16 08:37:21,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:21,735 INFO L471 AbstractCegarLoop]: Abstraction has 2148 states and 3283 transitions. [2024-11-16 08:37:21,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-11-16 08:37:21,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 3283 transitions. [2024-11-16 08:37:21,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-16 08:37:21,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:21,742 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:21,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:37:21,744 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:21,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash 463792803, now seen corresponding path program 1 times [2024-11-16 08:37:21,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:21,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184312132] [2024-11-16 08:37:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:21,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:21,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:21,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184312132] [2024-11-16 08:37:21,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184312132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:21,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:21,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:21,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544590711] [2024-11-16 08:37:21,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:21,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:21,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:21,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:21,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:21,899 INFO L87 Difference]: Start difference. First operand 2148 states and 3283 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2024-11-16 08:37:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:21,965 INFO L93 Difference]: Finished difference Result 5533 states and 8517 transitions. [2024-11-16 08:37:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 205 [2024-11-16 08:37:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:21,977 INFO L225 Difference]: With dead ends: 5533 [2024-11-16 08:37:21,977 INFO L226 Difference]: Without dead ends: 3536 [2024-11-16 08:37:21,981 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 [2024-11-16 08:37:21,982 INFO L432 NwaCegarLoop]: 769 mSDtfsCounter, 476 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:21,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1319 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2024-11-16 08:37:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3534. [2024-11-16 08:37:22,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 3533 states have (on average 1.5284460798188508) internal successors, (5400), 3533 states have internal predecessors, (5400), 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) [2024-11-16 08:37:22,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 5400 transitions. [2024-11-16 08:37:22,056 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 5400 transitions. Word has length 205 [2024-11-16 08:37:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:22,057 INFO L471 AbstractCegarLoop]: Abstraction has 3534 states and 5400 transitions. [2024-11-16 08:37:22,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2024-11-16 08:37:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 5400 transitions. [2024-11-16 08:37:22,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-16 08:37:22,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:22,064 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:22,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:37:22,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:22,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:22,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1753201609, now seen corresponding path program 1 times [2024-11-16 08:37:22,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:22,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778692933] [2024-11-16 08:37:22,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:22,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:22,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:22,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:22,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778692933] [2024-11-16 08:37:22,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778692933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:22,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:22,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:22,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756034018] [2024-11-16 08:37:22,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:22,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:22,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:22,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:22,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:22,204 INFO L87 Difference]: Start difference. First operand 3534 states and 5400 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2024-11-16 08:37:22,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:22,329 INFO L93 Difference]: Finished difference Result 9108 states and 13948 transitions. [2024-11-16 08:37:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:22,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 207 [2024-11-16 08:37:22,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:22,349 INFO L225 Difference]: With dead ends: 9108 [2024-11-16 08:37:22,349 INFO L226 Difference]: Without dead ends: 5738 [2024-11-16 08:37:22,353 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 [2024-11-16 08:37:22,354 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 459 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:22,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1437 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5738 states. [2024-11-16 08:37:22,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5738 to 5736. [2024-11-16 08:37:22,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5735 states have (on average 1.5199651264167393) internal successors, (8717), 5735 states have internal predecessors, (8717), 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) [2024-11-16 08:37:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 8717 transitions. [2024-11-16 08:37:22,487 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 8717 transitions. Word has length 207 [2024-11-16 08:37:22,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:22,488 INFO L471 AbstractCegarLoop]: Abstraction has 5736 states and 8717 transitions. [2024-11-16 08:37:22,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2024-11-16 08:37:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 8717 transitions. [2024-11-16 08:37:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-16 08:37:22,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:22,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:22,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:37:22,501 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:22,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:22,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1275190845, now seen corresponding path program 1 times [2024-11-16 08:37:22,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:22,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915925386] [2024-11-16 08:37:22,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:22,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:22,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:22,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:22,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915925386] [2024-11-16 08:37:22,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915925386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:22,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:22,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:37:22,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688850434] [2024-11-16 08:37:22,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:22,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:37:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:22,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:37:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:37:22,837 INFO L87 Difference]: Start difference. First operand 5736 states and 8717 transitions. Second operand has 8 states, 8 states have (on average 26.125) internal successors, (209), 8 states have internal predecessors, (209), 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) [2024-11-16 08:37:23,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:23,489 INFO L93 Difference]: Finished difference Result 38906 states and 59134 transitions. [2024-11-16 08:37:23,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:37:23,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.125) internal successors, (209), 8 states have internal predecessors, (209), 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 209 [2024-11-16 08:37:23,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:23,584 INFO L225 Difference]: With dead ends: 38906 [2024-11-16 08:37:23,584 INFO L226 Difference]: Without dead ends: 33338 [2024-11-16 08:37:23,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:37:23,606 INFO L432 NwaCegarLoop]: 1388 mSDtfsCounter, 7211 mSDsluCounter, 7896 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7211 SdHoareTripleChecker+Valid, 9284 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:23,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7211 Valid, 9284 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:37:23,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33338 states. [2024-11-16 08:37:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33338 to 11373. [2024-11-16 08:37:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11373 states, 11372 states have (on average 1.5066830812521983) internal successors, (17134), 11372 states have internal predecessors, (17134), 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) [2024-11-16 08:37:24,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11373 states to 11373 states and 17134 transitions. [2024-11-16 08:37:24,251 INFO L78 Accepts]: Start accepts. Automaton has 11373 states and 17134 transitions. Word has length 209 [2024-11-16 08:37:24,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:24,252 INFO L471 AbstractCegarLoop]: Abstraction has 11373 states and 17134 transitions. [2024-11-16 08:37:24,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.125) internal successors, (209), 8 states have internal predecessors, (209), 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) [2024-11-16 08:37:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 11373 states and 17134 transitions. [2024-11-16 08:37:24,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-16 08:37:24,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:24,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:24,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:37:24,278 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:24,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:24,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1142804743, now seen corresponding path program 1 times [2024-11-16 08:37:24,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:24,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643501996] [2024-11-16 08:37:24,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:24,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:24,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:24,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643501996] [2024-11-16 08:37:24,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643501996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:24,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:24,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:24,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539421832] [2024-11-16 08:37:24,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:24,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:24,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:24,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:24,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:24,403 INFO L87 Difference]: Start difference. First operand 11373 states and 17134 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2024-11-16 08:37:24,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:24,571 INFO L93 Difference]: Finished difference Result 32027 states and 48214 transitions. [2024-11-16 08:37:24,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:24,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 213 [2024-11-16 08:37:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:24,611 INFO L225 Difference]: With dead ends: 32027 [2024-11-16 08:37:24,611 INFO L226 Difference]: Without dead ends: 20747 [2024-11-16 08:37:24,632 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 [2024-11-16 08:37:24,633 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 518 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:24,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1853 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:24,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20747 states. [2024-11-16 08:37:25,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20747 to 20745. [2024-11-16 08:37:25,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20745 states, 20744 states have (on average 1.4966737369841883) internal successors, (31047), 20744 states have internal predecessors, (31047), 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) [2024-11-16 08:37:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20745 states to 20745 states and 31047 transitions. [2024-11-16 08:37:25,164 INFO L78 Accepts]: Start accepts. Automaton has 20745 states and 31047 transitions. Word has length 213 [2024-11-16 08:37:25,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:25,165 INFO L471 AbstractCegarLoop]: Abstraction has 20745 states and 31047 transitions. [2024-11-16 08:37:25,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2024-11-16 08:37:25,165 INFO L276 IsEmpty]: Start isEmpty. Operand 20745 states and 31047 transitions. [2024-11-16 08:37:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:37:25,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:25,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:25,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:37:25,213 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:25,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:25,213 INFO L85 PathProgramCache]: Analyzing trace with hash -327139236, now seen corresponding path program 1 times [2024-11-16 08:37:25,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:25,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475955680] [2024-11-16 08:37:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:25,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:25,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475955680] [2024-11-16 08:37:25,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475955680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:25,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:25,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:25,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905920619] [2024-11-16 08:37:25,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:25,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:25,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:25,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:25,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:25,362 INFO L87 Difference]: Start difference. First operand 20745 states and 31047 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:25,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:25,600 INFO L93 Difference]: Finished difference Result 60264 states and 90129 transitions. [2024-11-16 08:37:25,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:25,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2024-11-16 08:37:25,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:25,679 INFO L225 Difference]: With dead ends: 60264 [2024-11-16 08:37:25,680 INFO L226 Difference]: Without dead ends: 39730 [2024-11-16 08:37:25,855 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 [2024-11-16 08:37:25,864 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 568 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:25,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1441 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:37:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39730 states. [2024-11-16 08:37:26,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39730 to 39728. [2024-11-16 08:37:26,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39728 states, 39727 states have (on average 1.4874770307347647) internal successors, (59093), 39727 states have internal predecessors, (59093), 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) [2024-11-16 08:37:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39728 states to 39728 states and 59093 transitions. [2024-11-16 08:37:26,607 INFO L78 Accepts]: Start accepts. Automaton has 39728 states and 59093 transitions. Word has length 215 [2024-11-16 08:37:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:26,608 INFO L471 AbstractCegarLoop]: Abstraction has 39728 states and 59093 transitions. [2024-11-16 08:37:26,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:26,609 INFO L276 IsEmpty]: Start isEmpty. Operand 39728 states and 59093 transitions. [2024-11-16 08:37:26,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:37:26,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:26,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:26,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:37:26,726 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:26,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:26,726 INFO L85 PathProgramCache]: Analyzing trace with hash 155813340, now seen corresponding path program 1 times [2024-11-16 08:37:26,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:26,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663602864] [2024-11-16 08:37:26,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:26,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:26,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:26,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663602864] [2024-11-16 08:37:26,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663602864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:26,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:26,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:26,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31519254] [2024-11-16 08:37:26,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:26,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:26,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:26,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:26,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:26,871 INFO L87 Difference]: Start difference. First operand 39728 states and 59093 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:27,489 INFO L93 Difference]: Finished difference Result 114580 states and 170097 transitions. [2024-11-16 08:37:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:27,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2024-11-16 08:37:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:27,668 INFO L225 Difference]: With dead ends: 114580 [2024-11-16 08:37:27,669 INFO L226 Difference]: Without dead ends: 75732 [2024-11-16 08:37:27,732 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 [2024-11-16 08:37:27,733 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 532 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:27,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1441 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:27,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75732 states. [2024-11-16 08:37:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75732 to 75730. [2024-11-16 08:37:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75730 states, 75729 states have (on average 1.4759603322373198) internal successors, (111773), 75729 states have internal predecessors, (111773), 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) [2024-11-16 08:37:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75730 states to 75730 states and 111773 transitions. [2024-11-16 08:37:29,075 INFO L78 Accepts]: Start accepts. Automaton has 75730 states and 111773 transitions. Word has length 215 [2024-11-16 08:37:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:29,075 INFO L471 AbstractCegarLoop]: Abstraction has 75730 states and 111773 transitions. [2024-11-16 08:37:29,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 75730 states and 111773 transitions. [2024-11-16 08:37:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:37:29,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:29,216 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:29,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:37:29,216 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:29,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1086768996, now seen corresponding path program 1 times [2024-11-16 08:37:29,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:29,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768569259] [2024-11-16 08:37:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:29,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768569259] [2024-11-16 08:37:29,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768569259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:29,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:29,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:29,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910571531] [2024-11-16 08:37:29,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:29,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:29,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:29,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:29,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:29,337 INFO L87 Difference]: Start difference. First operand 75730 states and 111773 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:30,270 INFO L93 Difference]: Finished difference Result 216148 states and 317941 transitions. [2024-11-16 08:37:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:30,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2024-11-16 08:37:30,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:30,526 INFO L225 Difference]: With dead ends: 216148 [2024-11-16 08:37:30,527 INFO L226 Difference]: Without dead ends: 143391 [2024-11-16 08:37:30,626 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 [2024-11-16 08:37:30,627 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 514 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:30,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1441 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:37:30,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143391 states. [2024-11-16 08:37:32,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143391 to 143389. [2024-11-16 08:37:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143389 states, 143388 states have (on average 1.4615518732390438) internal successors, (209569), 143388 states have internal predecessors, (209569), 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) [2024-11-16 08:37:33,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143389 states to 143389 states and 209569 transitions. [2024-11-16 08:37:33,205 INFO L78 Accepts]: Start accepts. Automaton has 143389 states and 209569 transitions. Word has length 215 [2024-11-16 08:37:33,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:33,206 INFO L471 AbstractCegarLoop]: Abstraction has 143389 states and 209569 transitions. [2024-11-16 08:37:33,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 143389 states and 209569 transitions. [2024-11-16 08:37:33,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:37:33,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:33,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:33,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:37:33,411 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:33,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash -529511588, now seen corresponding path program 1 times [2024-11-16 08:37:33,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:33,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534670101] [2024-11-16 08:37:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:33,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:33,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:33,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534670101] [2024-11-16 08:37:33,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534670101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:33,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:33,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:33,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424751912] [2024-11-16 08:37:33,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:33,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:33,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:33,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:33,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:33,557 INFO L87 Difference]: Start difference. First operand 143389 states and 209569 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:35,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:35,551 INFO L93 Difference]: Finished difference Result 400022 states and 581077 transitions. [2024-11-16 08:37:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:35,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2024-11-16 08:37:35,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:35,957 INFO L225 Difference]: With dead ends: 400022 [2024-11-16 08:37:35,957 INFO L226 Difference]: Without dead ends: 267952 [2024-11-16 08:37:36,031 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 [2024-11-16 08:37:36,032 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 496 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:36,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1441 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:37:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267952 states. [2024-11-16 08:37:40,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267952 to 267950. [2024-11-16 08:37:41,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267950 states, 267949 states have (on average 1.4420990561636728) internal successors, (386409), 267949 states have internal predecessors, (386409), 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) [2024-11-16 08:37:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267950 states to 267950 states and 386409 transitions. [2024-11-16 08:37:41,591 INFO L78 Accepts]: Start accepts. Automaton has 267950 states and 386409 transitions. Word has length 215 [2024-11-16 08:37:41,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:41,592 INFO L471 AbstractCegarLoop]: Abstraction has 267950 states and 386409 transitions. [2024-11-16 08:37:41,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 267950 states and 386409 transitions. [2024-11-16 08:37:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:37:42,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:42,890 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:42,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:37:42,891 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:42,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:42,891 INFO L85 PathProgramCache]: Analyzing trace with hash 200356636, now seen corresponding path program 1 times [2024-11-16 08:37:42,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:42,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226967063] [2024-11-16 08:37:42,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:42,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:43,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:43,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226967063] [2024-11-16 08:37:43,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226967063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:43,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:43,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:43,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414388384] [2024-11-16 08:37:43,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:43,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:43,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:43,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:43,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:43,121 INFO L87 Difference]: Start difference. First operand 267950 states and 386409 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:45,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:37:45,804 INFO L93 Difference]: Finished difference Result 773049 states and 1110663 transitions. [2024-11-16 08:37:45,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:37:45,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2024-11-16 08:37:45,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:37:46,701 INFO L225 Difference]: With dead ends: 773049 [2024-11-16 08:37:46,701 INFO L226 Difference]: Without dead ends: 507476 [2024-11-16 08:37:47,674 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 [2024-11-16 08:37:47,674 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 550 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:37:47,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1441 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:37:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507476 states. [2024-11-16 08:37:54,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507476 to 507474. [2024-11-16 08:37:54,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507474 states, 507473 states have (on average 1.4259182261913441) internal successors, (723615), 507473 states have internal predecessors, (723615), 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) [2024-11-16 08:37:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507474 states to 507474 states and 723615 transitions. [2024-11-16 08:37:56,645 INFO L78 Accepts]: Start accepts. Automaton has 507474 states and 723615 transitions. Word has length 215 [2024-11-16 08:37:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:37:56,645 INFO L471 AbstractCegarLoop]: Abstraction has 507474 states and 723615 transitions. [2024-11-16 08:37:56,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2024-11-16 08:37:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 507474 states and 723615 transitions. [2024-11-16 08:37:57,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-16 08:37:57,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:37:57,294 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:37:57,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:37:57,294 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:37:57,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:37:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash 359249517, now seen corresponding path program 1 times [2024-11-16 08:37:57,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:37:57,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701329668] [2024-11-16 08:37:57,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:37:57,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:37:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:37:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:37:57,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:37:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701329668] [2024-11-16 08:37:57,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701329668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:37:57,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:37:57,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:37:57,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613322034] [2024-11-16 08:37:57,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:37:57,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:37:57,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:37:57,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:37:57,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:37:57,388 INFO L87 Difference]: Start difference. First operand 507474 states and 723615 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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)