./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-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 b8f220cadba131cee309fef082c623cdd627c534b9e708cc4a4f1dd2aa7336b9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:54:51,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:54:51,980 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:54:51,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:54:51,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:54:52,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:54:52,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:54:52,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:54:52,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:54:52,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:54:52,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:54:52,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:54:52,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:54:52,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:54:52,019 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:54:52,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:54:52,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:54:52,020 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:54:52,020 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:54:52,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:54:52,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:54:52,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:54:52,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:54:52,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:54:52,022 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:54:52,023 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:54:52,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:54:52,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:54:52,023 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:54:52,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:54:52,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:54:52,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:54:52,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:54:52,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:54:52,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:54:52,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:54:52,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:54:52,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:54:52,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:54:52,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:54:52,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:54:52,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:54:52,027 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8f220cadba131cee309fef082c623cdd627c534b9e708cc4a4f1dd2aa7336b9 [2024-11-09 23:54:52,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:54:52,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:54:52,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:54:52,293 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:54:52,294 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:54:52,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-09 23:54:53,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:54:53,997 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:54:54,001 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-09 23:54:54,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d817256/7b3cea18cf3f47989d01e42682b77f12/FLAG4862b41f2 [2024-11-09 23:54:54,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d817256/7b3cea18cf3f47989d01e42682b77f12 [2024-11-09 23:54:54,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:54:54,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:54:54,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:54:54,361 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:54:54,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:54:54,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665ebdc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54, skipping insertion in model container [2024-11-09 23:54:54,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:54:54,657 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.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6322,6335] [2024-11-09 23:54:54,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:54:54,718 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:54:54,826 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.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6322,6335] [2024-11-09 23:54:54,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:54:54,866 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:54:54,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54 WrapperNode [2024-11-09 23:54:54,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:54:54,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:54:54,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:54:54,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:54:54,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,921 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 564 [2024-11-09 23:54:54,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:54:54,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:54:54,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:54:54,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:54:54,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,939 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,960 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]. [2024-11-09 23:54:54,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,975 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:54:54,989 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:54:54,989 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:54:54,989 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:54:54,990 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (1/1) ... [2024-11-09 23:54:54,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:54:55,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:54:55,032 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) [2024-11-09 23:54:55,039 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 [2024-11-09 23:54:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:54:55,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:54:55,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:54:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:54:55,209 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:54:55,211 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:54:55,712 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L631: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:55,712 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L268: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:55,712 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L268: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:55,713 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L268: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:55,713 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L268: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-09 23:54:55,713 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L318: 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; [2024-11-09 23:54:55,713 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L318: 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; [2024-11-09 23:54:55,713 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L318: 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; [2024-11-09 23:54:55,713 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L401: havoc main_~node5____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:55,714 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:55,714 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L487: havoc main_~node4____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:55,714 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L373: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:55,715 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L573: havoc main_~node3____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:55,715 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L459: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:55,715 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,717 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,717 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,717 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,717 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,718 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,718 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,718 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,718 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,719 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,719 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,719 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,719 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,719 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,720 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,720 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,720 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,720 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,720 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,720 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,720 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,722 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L195: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-09 23:54:55,722 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node2____CPAchecker_TMP_1~0#1; [2024-11-09 23:54:55,722 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L545: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-09 23:54:55,722 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L232: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:55,722 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L232: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:55,722 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L232: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:55,722 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L232: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-09 23:54:55,757 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-09 23:54:55,757 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:54:55,776 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:54:55,777 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:54:55,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:54:55 BoogieIcfgContainer [2024-11-09 23:54:55,778 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:54:55,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:54:55,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:54:55,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:54:55,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:54:54" (1/3) ... [2024-11-09 23:54:55,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71274af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:54:55, skipping insertion in model container [2024-11-09 23:54:55,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:54:54" (2/3) ... [2024-11-09 23:54:55,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71274af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:54:55, skipping insertion in model container [2024-11-09 23:54:55,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:54:55" (3/3) ... [2024-11-09 23:54:55,786 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-11-09 23:54:55,802 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:54:55,803 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:54:55,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:54:55,881 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;@229661bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:54:55,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:54:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 137 states have (on average 1.6642335766423357) internal successors, (228), 138 states have internal predecessors, (228), 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) [2024-11-09 23:54:55,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 23:54:55,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:55,901 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] [2024-11-09 23:54:55,902 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:55,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:55,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1086693142, now seen corresponding path program 1 times [2024-11-09 23:54:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:55,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492105841] [2024-11-09 23:54:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:55,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:56,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:56,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492105841] [2024-11-09 23:54:56,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492105841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:56,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:56,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:56,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54005415] [2024-11-09 23:54:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:56,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:56,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:56,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:56,498 INFO L87 Difference]: Start difference. First operand has 139 states, 137 states have (on average 1.6642335766423357) internal successors, (228), 138 states have internal predecessors, (228), 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 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-09 23:54:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:56,588 INFO L93 Difference]: Finished difference Result 328 states and 519 transitions. [2024-11-09 23:54:56,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:56,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2024-11-09 23:54:56,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:56,600 INFO L225 Difference]: With dead ends: 328 [2024-11-09 23:54:56,600 INFO L226 Difference]: Without dead ends: 218 [2024-11-09 23:54:56,603 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 [2024-11-09 23:54:56,607 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 163 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:56,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 485 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-09 23:54:56,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2024-11-09 23:54:56,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.4697674418604652) internal successors, (316), 215 states have internal predecessors, (316), 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) [2024-11-09 23:54:56,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 316 transitions. [2024-11-09 23:54:56,688 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 316 transitions. Word has length 61 [2024-11-09 23:54:56,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:56,689 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 316 transitions. [2024-11-09 23:54:56,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-09 23:54:56,691 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 316 transitions. [2024-11-09 23:54:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 23:54:56,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:56,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:54:56,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:54:56,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:56,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:56,697 INFO L85 PathProgramCache]: Analyzing trace with hash 561404643, now seen corresponding path program 1 times [2024-11-09 23:54:56,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:56,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385726218] [2024-11-09 23:54:56,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:56,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:56,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:56,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385726218] [2024-11-09 23:54:56,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385726218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:56,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:56,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:56,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49947548] [2024-11-09 23:54:56,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:56,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:56,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:56,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:56,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:56,865 INFO L87 Difference]: Start difference. First operand 216 states and 316 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-09 23:54:56,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:56,908 INFO L93 Difference]: Finished difference Result 544 states and 824 transitions. [2024-11-09 23:54:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:56,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2024-11-09 23:54:56,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:56,911 INFO L225 Difference]: With dead ends: 544 [2024-11-09 23:54:56,911 INFO L226 Difference]: Without dead ends: 363 [2024-11-09 23:54:56,916 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 [2024-11-09 23:54:56,917 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 132 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:56,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:56,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-09 23:54:56,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2024-11-09 23:54:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.5) internal successors, (540), 360 states have internal predecessors, (540), 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) [2024-11-09 23:54:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 540 transitions. [2024-11-09 23:54:56,952 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 540 transitions. Word has length 62 [2024-11-09 23:54:56,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:56,953 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 540 transitions. [2024-11-09 23:54:56,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-09 23:54:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 540 transitions. [2024-11-09 23:54:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 23:54:56,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:56,957 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] [2024-11-09 23:54:56,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:54:56,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:56,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:56,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1528412220, now seen corresponding path program 1 times [2024-11-09 23:54:56,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:56,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070266766] [2024-11-09 23:54:56,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:56,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:57,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:57,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070266766] [2024-11-09 23:54:57,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070266766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:57,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:57,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48015651] [2024-11-09 23:54:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:57,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:57,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:57,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:57,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:57,088 INFO L87 Difference]: Start difference. First operand 361 states and 540 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-09 23:54:57,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:57,122 INFO L93 Difference]: Finished difference Result 945 states and 1442 transitions. [2024-11-09 23:54:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2024-11-09 23:54:57,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:57,127 INFO L225 Difference]: With dead ends: 945 [2024-11-09 23:54:57,127 INFO L226 Difference]: Without dead ends: 619 [2024-11-09 23:54:57,129 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 [2024-11-09 23:54:57,131 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 127 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:57,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 405 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:57,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-09 23:54:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 617. [2024-11-09 23:54:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 616 states have (on average 1.5129870129870129) internal successors, (932), 616 states have internal predecessors, (932), 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) [2024-11-09 23:54:57,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 932 transitions. [2024-11-09 23:54:57,172 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 932 transitions. Word has length 63 [2024-11-09 23:54:57,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:57,172 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 932 transitions. [2024-11-09 23:54:57,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-09 23:54:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 932 transitions. [2024-11-09 23:54:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 23:54:57,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:57,174 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] [2024-11-09 23:54:57,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:54:57,174 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:57,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:57,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1221505113, now seen corresponding path program 1 times [2024-11-09 23:54:57,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:57,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191777643] [2024-11-09 23:54:57,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:57,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:57,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:57,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191777643] [2024-11-09 23:54:57,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191777643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:57,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:57,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:57,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175819816] [2024-11-09 23:54:57,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:57,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:57,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:57,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:57,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:57,294 INFO L87 Difference]: Start difference. First operand 617 states and 932 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-09 23:54:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:57,322 INFO L93 Difference]: Finished difference Result 1645 states and 2510 transitions. [2024-11-09 23:54:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:57,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2024-11-09 23:54:57,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:57,327 INFO L225 Difference]: With dead ends: 1645 [2024-11-09 23:54:57,328 INFO L226 Difference]: Without dead ends: 1063 [2024-11-09 23:54:57,330 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 [2024-11-09 23:54:57,332 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 122 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:57,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 390 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:57,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2024-11-09 23:54:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061. [2024-11-09 23:54:57,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1060 states have (on average 1.5132075471698114) internal successors, (1604), 1060 states have internal predecessors, (1604), 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) [2024-11-09 23:54:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1604 transitions. [2024-11-09 23:54:57,374 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1604 transitions. Word has length 64 [2024-11-09 23:54:57,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:57,374 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1604 transitions. [2024-11-09 23:54:57,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-09 23:54:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1604 transitions. [2024-11-09 23:54:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 23:54:57,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:57,376 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] [2024-11-09 23:54:57,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:54:57,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:57,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:57,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1762108386, now seen corresponding path program 1 times [2024-11-09 23:54:57,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:57,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338615312] [2024-11-09 23:54:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:57,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:57,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338615312] [2024-11-09 23:54:57,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338615312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:57,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:57,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:57,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017751006] [2024-11-09 23:54:57,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:57,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:57,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:57,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:57,559 INFO L87 Difference]: Start difference. First operand 1061 states and 1604 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2024-11-09 23:54:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:57,796 INFO L93 Difference]: Finished difference Result 7217 states and 11018 transitions. [2024-11-09 23:54:57,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:57,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65 [2024-11-09 23:54:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:57,825 INFO L225 Difference]: With dead ends: 7217 [2024-11-09 23:54:57,826 INFO L226 Difference]: Without dead ends: 6191 [2024-11-09 23:54:57,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:54:57,832 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1447 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:57,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 2375 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2024-11-09 23:54:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 2085. [2024-11-09 23:54:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 2084 states have (on average 1.506717850287908) internal successors, (3140), 2084 states have internal predecessors, (3140), 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) [2024-11-09 23:54:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3140 transitions. [2024-11-09 23:54:57,941 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3140 transitions. Word has length 65 [2024-11-09 23:54:57,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:57,943 INFO L471 AbstractCegarLoop]: Abstraction has 2085 states and 3140 transitions. [2024-11-09 23:54:57,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2024-11-09 23:54:57,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3140 transitions. [2024-11-09 23:54:57,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:54:57,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:57,945 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] [2024-11-09 23:54:57,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:54:57,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:57,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1138472482, now seen corresponding path program 1 times [2024-11-09 23:54:57,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:57,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003340755] [2024-11-09 23:54:57,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:57,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:58,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:58,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:58,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003340755] [2024-11-09 23:54:58,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003340755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:58,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:58,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:54:58,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286100234] [2024-11-09 23:54:58,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:58,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:54:58,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:58,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:54:58,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:58,301 INFO L87 Difference]: Start difference. First operand 2085 states and 3140 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2024-11-09 23:54:58,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:58,475 INFO L93 Difference]: Finished difference Result 10895 states and 16393 transitions. [2024-11-09 23:54:58,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:54:58,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 67 [2024-11-09 23:54:58,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:58,509 INFO L225 Difference]: With dead ends: 10895 [2024-11-09 23:54:58,509 INFO L226 Difference]: Without dead ends: 8845 [2024-11-09 23:54:58,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:54:58,519 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 769 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:58,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 922 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:54:58,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8845 states. [2024-11-09 23:54:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8845 to 8837. [2024-11-09 23:54:58,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8837 states, 8836 states have (on average 1.4997736532367587) internal successors, (13252), 8836 states have internal predecessors, (13252), 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) [2024-11-09 23:54:58,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8837 states to 8837 states and 13252 transitions. [2024-11-09 23:54:58,730 INFO L78 Accepts]: Start accepts. Automaton has 8837 states and 13252 transitions. Word has length 67 [2024-11-09 23:54:58,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:58,731 INFO L471 AbstractCegarLoop]: Abstraction has 8837 states and 13252 transitions. [2024-11-09 23:54:58,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2024-11-09 23:54:58,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8837 states and 13252 transitions. [2024-11-09 23:54:58,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 23:54:58,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:58,733 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] [2024-11-09 23:54:58,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:54:58,734 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:58,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:58,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1215716015, now seen corresponding path program 1 times [2024-11-09 23:54:58,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:58,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476414068] [2024-11-09 23:54:58,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:58,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:58,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:58,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476414068] [2024-11-09 23:54:58,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476414068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:58,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:58,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:54:58,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819521609] [2024-11-09 23:54:58,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:58,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:54:58,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:58,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:54:58,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:54:58,825 INFO L87 Difference]: Start difference. First operand 8837 states and 13252 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-09 23:54:58,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:54:58,943 INFO L93 Difference]: Finished difference Result 24521 states and 36646 transitions. [2024-11-09 23:54:58,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:54:58,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-09 23:54:58,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:54:59,007 INFO L225 Difference]: With dead ends: 24521 [2024-11-09 23:54:59,008 INFO L226 Difference]: Without dead ends: 15719 [2024-11-09 23:54:59,023 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 [2024-11-09 23:54:59,025 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 141 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:54:59,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 469 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:54:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15719 states. [2024-11-09 23:54:59,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15719 to 15717. [2024-11-09 23:54:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15717 states, 15716 states have (on average 1.480529396793077) internal successors, (23268), 15716 states have internal predecessors, (23268), 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) [2024-11-09 23:54:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15717 states to 15717 states and 23268 transitions. [2024-11-09 23:54:59,550 INFO L78 Accepts]: Start accepts. Automaton has 15717 states and 23268 transitions. Word has length 67 [2024-11-09 23:54:59,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:54:59,551 INFO L471 AbstractCegarLoop]: Abstraction has 15717 states and 23268 transitions. [2024-11-09 23:54:59,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-09 23:54:59,552 INFO L276 IsEmpty]: Start isEmpty. Operand 15717 states and 23268 transitions. [2024-11-09 23:54:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 23:54:59,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:54:59,553 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] [2024-11-09 23:54:59,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:54:59,553 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:54:59,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:54:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1274535652, now seen corresponding path program 1 times [2024-11-09 23:54:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:54:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533141544] [2024-11-09 23:54:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:54:59,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:54:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:54:59,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:54:59,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:54:59,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533141544] [2024-11-09 23:54:59,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533141544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:54:59,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:54:59,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:54:59,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766331563] [2024-11-09 23:54:59,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:54:59,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:54:59,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:54:59,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:54:59,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:54:59,962 INFO L87 Difference]: Start difference. First operand 15717 states and 23268 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-09 23:55:00,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:00,046 INFO L93 Difference]: Finished difference Result 16679 states and 24549 transitions. [2024-11-09 23:55:00,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:55:00,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2024-11-09 23:55:00,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:00,080 INFO L225 Difference]: With dead ends: 16679 [2024-11-09 23:55:00,080 INFO L226 Difference]: Without dead ends: 16677 [2024-11-09 23:55:00,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:55:00,089 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:00,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 737 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:00,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16677 states. [2024-11-09 23:55:00,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16677 to 16677. [2024-11-09 23:55:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16677 states, 16676 states have (on average 1.4528663948189013) internal successors, (24228), 16676 states have internal predecessors, (24228), 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) [2024-11-09 23:55:00,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16677 states to 16677 states and 24228 transitions. [2024-11-09 23:55:00,457 INFO L78 Accepts]: Start accepts. Automaton has 16677 states and 24228 transitions. Word has length 69 [2024-11-09 23:55:00,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:00,457 INFO L471 AbstractCegarLoop]: Abstraction has 16677 states and 24228 transitions. [2024-11-09 23:55:00,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-09 23:55:00,458 INFO L276 IsEmpty]: Start isEmpty. Operand 16677 states and 24228 transitions. [2024-11-09 23:55:00,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 23:55:00,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:00,459 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] [2024-11-09 23:55:00,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:55:00,459 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:00,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:00,459 INFO L85 PathProgramCache]: Analyzing trace with hash -679475188, now seen corresponding path program 1 times [2024-11-09 23:55:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886554183] [2024-11-09 23:55:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:00,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:00,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:00,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886554183] [2024-11-09 23:55:00,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886554183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:00,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:00,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:00,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752644876] [2024-11-09 23:55:00,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:00,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:00,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:00,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:00,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:00,535 INFO L87 Difference]: Start difference. First operand 16677 states and 24228 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-09 23:55:00,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:00,767 INFO L93 Difference]: Finished difference Result 40444 states and 58825 transitions. [2024-11-09 23:55:00,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:00,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2024-11-09 23:55:00,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:00,821 INFO L225 Difference]: With dead ends: 40444 [2024-11-09 23:55:00,821 INFO L226 Difference]: Without dead ends: 23802 [2024-11-09 23:55:00,847 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 [2024-11-09 23:55:00,848 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 112 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:00,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:00,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23802 states. [2024-11-09 23:55:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23802 to 23800. [2024-11-09 23:55:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23800 states, 23799 states have (on average 1.449094499768898) internal successors, (34487), 23799 states have internal predecessors, (34487), 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) [2024-11-09 23:55:01,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23800 states to 23800 states and 34487 transitions. [2024-11-09 23:55:01,321 INFO L78 Accepts]: Start accepts. Automaton has 23800 states and 34487 transitions. Word has length 70 [2024-11-09 23:55:01,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:01,322 INFO L471 AbstractCegarLoop]: Abstraction has 23800 states and 34487 transitions. [2024-11-09 23:55:01,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-09 23:55:01,322 INFO L276 IsEmpty]: Start isEmpty. Operand 23800 states and 34487 transitions. [2024-11-09 23:55:01,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 23:55:01,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:01,335 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:01,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:55:01,335 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:01,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:01,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1755206872, now seen corresponding path program 1 times [2024-11-09 23:55:01,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:01,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238393897] [2024-11-09 23:55:01,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:01,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:55:01,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:01,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238393897] [2024-11-09 23:55:01,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238393897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:55:01,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187558846] [2024-11-09 23:55:01,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:01,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:55:01,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:55:01,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:55:01,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:55:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:01,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 23:55:01,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:55:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:02,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:55:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:03,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187558846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:55:03,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:55:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 7] total 14 [2024-11-09 23:55:03,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892583542] [2024-11-09 23:55:03,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:55:03,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 23:55:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:03,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 23:55:03,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:55:03,546 INFO L87 Difference]: Start difference. First operand 23800 states and 34487 transitions. Second operand has 14 states, 14 states have (on average 18.214285714285715) internal successors, (255), 14 states have internal predecessors, (255), 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) [2024-11-09 23:55:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:04,405 INFO L93 Difference]: Finished difference Result 71658 states and 103591 transitions. [2024-11-09 23:55:04,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 23:55:04,405 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.214285714285715) internal successors, (255), 14 states have internal predecessors, (255), 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 97 [2024-11-09 23:55:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:04,493 INFO L225 Difference]: With dead ends: 71658 [2024-11-09 23:55:04,493 INFO L226 Difference]: Without dead ends: 47896 [2024-11-09 23:55:04,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2024-11-09 23:55:04,529 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 2106 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:04,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 2711 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:55:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47896 states. [2024-11-09 23:55:05,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47896 to 38718. [2024-11-09 23:55:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38718 states, 38717 states have (on average 1.4414339954025364) internal successors, (55808), 38717 states have internal predecessors, (55808), 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) [2024-11-09 23:55:05,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38718 states to 38718 states and 55808 transitions. [2024-11-09 23:55:05,326 INFO L78 Accepts]: Start accepts. Automaton has 38718 states and 55808 transitions. Word has length 97 [2024-11-09 23:55:05,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:05,326 INFO L471 AbstractCegarLoop]: Abstraction has 38718 states and 55808 transitions. [2024-11-09 23:55:05,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.214285714285715) internal successors, (255), 14 states have internal predecessors, (255), 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) [2024-11-09 23:55:05,326 INFO L276 IsEmpty]: Start isEmpty. Operand 38718 states and 55808 transitions. [2024-11-09 23:55:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:05,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:05,334 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:05,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:55:05,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 23:55:05,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:05,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:05,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1087391753, now seen corresponding path program 1 times [2024-11-09 23:55:05,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:05,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213675724] [2024-11-09 23:55:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:05,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:05,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213675724] [2024-11-09 23:55:05,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213675724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:05,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:05,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:05,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445918522] [2024-11-09 23:55:05,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:05,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:05,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:05,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:05,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:05,789 INFO L87 Difference]: Start difference. First operand 38718 states and 55808 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:06,098 INFO L93 Difference]: Finished difference Result 100741 states and 145126 transitions. [2024-11-09 23:55:06,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:06,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2024-11-09 23:55:06,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:06,229 INFO L225 Difference]: With dead ends: 100741 [2024-11-09 23:55:06,229 INFO L226 Difference]: Without dead ends: 68525 [2024-11-09 23:55:06,285 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 [2024-11-09 23:55:06,285 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 108 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:06,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 375 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:06,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68525 states. [2024-11-09 23:55:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68525 to 68523. [2024-11-09 23:55:07,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68523 states, 68522 states have (on average 1.4304894778319373) internal successors, (98020), 68522 states have internal predecessors, (98020), 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) [2024-11-09 23:55:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68523 states to 68523 states and 98020 transitions. [2024-11-09 23:55:07,541 INFO L78 Accepts]: Start accepts. Automaton has 68523 states and 98020 transitions. Word has length 98 [2024-11-09 23:55:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:07,542 INFO L471 AbstractCegarLoop]: Abstraction has 68523 states and 98020 transitions. [2024-11-09 23:55:07,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 68523 states and 98020 transitions. [2024-11-09 23:55:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:07,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:07,551 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:07,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:55:07,723 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:07,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:07,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1052187912, now seen corresponding path program 1 times [2024-11-09 23:55:07,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:07,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919095397] [2024-11-09 23:55:07,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:07,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:07,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:07,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919095397] [2024-11-09 23:55:07,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919095397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:07,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:07,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:07,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474232161] [2024-11-09 23:55:07,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:07,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:07,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:07,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:07,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:07,920 INFO L87 Difference]: Start difference. First operand 68523 states and 98020 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:08,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:08,470 INFO L93 Difference]: Finished difference Result 177400 states and 252959 transitions. [2024-11-09 23:55:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:08,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2024-11-09 23:55:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:08,672 INFO L225 Difference]: With dead ends: 177400 [2024-11-09 23:55:08,673 INFO L226 Difference]: Without dead ends: 115630 [2024-11-09 23:55:08,712 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 [2024-11-09 23:55:08,713 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 108 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:08,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 378 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:08,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115630 states. [2024-11-09 23:55:10,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115630 to 113460. [2024-11-09 23:55:10,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113460 states, 113459 states have (on average 1.4156038745273622) internal successors, (160613), 113459 states have internal predecessors, (160613), 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) [2024-11-09 23:55:10,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113460 states to 113460 states and 160613 transitions. [2024-11-09 23:55:10,592 INFO L78 Accepts]: Start accepts. Automaton has 113460 states and 160613 transitions. Word has length 98 [2024-11-09 23:55:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:10,593 INFO L471 AbstractCegarLoop]: Abstraction has 113460 states and 160613 transitions. [2024-11-09 23:55:10,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand 113460 states and 160613 transitions. [2024-11-09 23:55:10,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:10,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:10,608 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:10,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:55:10,608 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:10,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:10,608 INFO L85 PathProgramCache]: Analyzing trace with hash -736668407, now seen corresponding path program 1 times [2024-11-09 23:55:10,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777591687] [2024-11-09 23:55:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:10,677 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:10,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:10,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777591687] [2024-11-09 23:55:10,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777591687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:10,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:10,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:10,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300297825] [2024-11-09 23:55:10,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:10,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:10,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:10,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:10,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:10,680 INFO L87 Difference]: Start difference. First operand 113460 states and 160613 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:11,541 INFO L93 Difference]: Finished difference Result 275291 states and 388111 transitions. [2024-11-09 23:55:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2024-11-09 23:55:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:11,802 INFO L225 Difference]: With dead ends: 275291 [2024-11-09 23:55:11,802 INFO L226 Difference]: Without dead ends: 182094 [2024-11-09 23:55:11,897 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 [2024-11-09 23:55:11,898 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 109 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:11,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 397 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182094 states. [2024-11-09 23:55:14,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182094 to 177460. [2024-11-09 23:55:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177460 states, 177459 states have (on average 1.3989203139880197) internal successors, (248251), 177459 states have internal predecessors, (248251), 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) [2024-11-09 23:55:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177460 states to 177460 states and 248251 transitions. [2024-11-09 23:55:15,395 INFO L78 Accepts]: Start accepts. Automaton has 177460 states and 248251 transitions. Word has length 98 [2024-11-09 23:55:15,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:15,395 INFO L471 AbstractCegarLoop]: Abstraction has 177460 states and 248251 transitions. [2024-11-09 23:55:15,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:15,396 INFO L276 IsEmpty]: Start isEmpty. Operand 177460 states and 248251 transitions. [2024-11-09 23:55:15,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:15,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:15,418 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:15,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:55:15,418 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:15,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:15,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1472633096, now seen corresponding path program 1 times [2024-11-09 23:55:15,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:15,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452693859] [2024-11-09 23:55:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:15,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:55:15,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:15,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452693859] [2024-11-09 23:55:15,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452693859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:15,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:15,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:55:15,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103225703] [2024-11-09 23:55:15,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:15,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:55:15,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:15,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:55:15,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:55:15,491 INFO L87 Difference]: Start difference. First operand 177460 states and 248251 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:17,101 INFO L93 Difference]: Finished difference Result 391185 states and 544281 transitions. [2024-11-09 23:55:17,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:55:17,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2024-11-09 23:55:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:17,488 INFO L225 Difference]: With dead ends: 391185 [2024-11-09 23:55:17,488 INFO L226 Difference]: Without dead ends: 263010 [2024-11-09 23:55:17,554 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 [2024-11-09 23:55:17,554 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 110 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:17,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 426 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:55:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263010 states. [2024-11-09 23:55:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263010 to 254472. [2024-11-09 23:55:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254472 states, 254471 states have (on average 1.380019727198777) internal successors, (351175), 254471 states have internal predecessors, (351175), 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) [2024-11-09 23:55:21,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254472 states to 254472 states and 351175 transitions. [2024-11-09 23:55:21,410 INFO L78 Accepts]: Start accepts. Automaton has 254472 states and 351175 transitions. Word has length 98 [2024-11-09 23:55:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:21,410 INFO L471 AbstractCegarLoop]: Abstraction has 254472 states and 351175 transitions. [2024-11-09 23:55:21,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-09 23:55:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 254472 states and 351175 transitions. [2024-11-09 23:55:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:21,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:21,428 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:21,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:55:21,429 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:21,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:21,429 INFO L85 PathProgramCache]: Analyzing trace with hash -776248823, now seen corresponding path program 1 times [2024-11-09 23:55:21,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:21,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374268799] [2024-11-09 23:55:21,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 23:55:22,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:22,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374268799] [2024-11-09 23:55:22,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374268799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:22,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:22,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:22,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844271834] [2024-11-09 23:55:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:22,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:22,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:22,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:22,443 INFO L87 Difference]: Start difference. First operand 254472 states and 351175 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:25,225 INFO L93 Difference]: Finished difference Result 724302 states and 1004703 transitions. [2024-11-09 23:55:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-09 23:55:25,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:26,531 INFO L225 Difference]: With dead ends: 724302 [2024-11-09 23:55:26,532 INFO L226 Difference]: Without dead ends: 651980 [2024-11-09 23:55:26,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:55:26,762 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 1518 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:26,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1345 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:27,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651980 states. [2024-11-09 23:55:33,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651980 to 325709. [2024-11-09 23:55:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325709 states, 325708 states have (on average 1.3757291807385756) internal successors, (448086), 325708 states have internal predecessors, (448086), 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) [2024-11-09 23:55:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325709 states to 325709 states and 448086 transitions. [2024-11-09 23:55:34,262 INFO L78 Accepts]: Start accepts. Automaton has 325709 states and 448086 transitions. Word has length 98 [2024-11-09 23:55:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:55:34,262 INFO L471 AbstractCegarLoop]: Abstraction has 325709 states and 448086 transitions. [2024-11-09 23:55:35,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 23:55:35,165 INFO L276 IsEmpty]: Start isEmpty. Operand 325709 states and 448086 transitions. [2024-11-09 23:55:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 23:55:35,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:55:35,199 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:55:35,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:55:35,199 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:55:35,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:55:35,200 INFO L85 PathProgramCache]: Analyzing trace with hash -125972252, now seen corresponding path program 1 times [2024-11-09 23:55:35,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:55:35,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12940939] [2024-11-09 23:55:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:55:35,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:55:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:55:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 23:55:35,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:55:35,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12940939] [2024-11-09 23:55:35,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12940939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:55:35,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:55:35,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:55:35,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263035305] [2024-11-09 23:55:35,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:55:35,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:55:35,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:55:35,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:55:35,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:55:35,627 INFO L87 Difference]: Start difference. First operand 325709 states and 448086 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2024-11-09 23:55:38,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:55:38,435 INFO L93 Difference]: Finished difference Result 817902 states and 1133247 transitions. [2024-11-09 23:55:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 23:55:38,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 98 [2024-11-09 23:55:38,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:55:39,635 INFO L225 Difference]: With dead ends: 817902 [2024-11-09 23:55:39,635 INFO L226 Difference]: Without dead ends: 722028 [2024-11-09 23:55:39,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:55:39,797 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 1368 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:55:39,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 1426 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:55:41,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722028 states. [2024-11-09 23:55:46,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722028 to 420628.